What Is Canon?

The Tiers of Canonicity

One of the difficulties in analyzing Neon Genesis Evangelion is the large number of secondary sources, some of which seem to be contradictory. Just how does one determine what is and is not canon? A very handy rule of thumb was invented for this purpose by Shin-seiki, a frequent poster at the Anime Nation and Eva Monkey forums. This tool is known as Shin-seiki's Tiers of Canonicity and is a proven system, both simple and effective, for resolving contradictory statements among various sources.

1. The anime itself and its scripts and storyboards. The Director's Cuts are the final or official version and take precedence over the On Air version in the event of any theoretical contradiction.
2. Statements made by the show's creators, principally Hideaki Anno.
3. Official supplemental sources such as theatrical programs, Newtype Filmbooks, and Cardass Cards.
4. The Manga, which is actually its own continuity. At best it can be used to support the anime when they are in explicit agreement; it should never be used to contradict the anime.
5. Statements made by those responsible for adapting Evangelion for release outside of Japan. In the English speaking world this would be representatives of ADV or Manga Entertainment.

Lower tiers are canon only if they do not contradict the evidence presented in higher tiers. Info from lower tiers should also be treated with somewhat more skepticism than higher tiers.

This system is a widely accepted method in Evangelion discussion circles and is therefore accepted as a guideline for the presentation of material on this wiki.

The following are some examples of each tier.

Tier 1: The Anime Itself and its Scripts and Storyboards:

The primary Canon is the evidence presented in the series. For example, when Misato reveals to Shinji in Ep. 19 that all of his classmates are Eva pilot candidates, that is official and no lower-tiered source can contradict it. You can then combine it with evidence from elsewhere in the show such as Toji's implication in Episode 03 that his mother is dead, and the revelations that the souls of Unit-01 and Unit-02 are the pilots' mothers, and conclude that Unit-03's soul is that of Toji's mother.

The scripts and storyboards have yielded some important gems of information. For instance, the script for The End of Evangelion explicitly describes the "Mother" from the sandbox scene as Misato.

Everything added to the director's cuts is first-tier canon and was put there to set up something that happens in EOE. Shin-seiki has promised to write an essay that will go over this scene by scene. Please refer to Guides:Episode 21 OA vs. DC and so on.

The production drawings that were applied to the final show also classify as first-tier canon. The same applies to genga, the drawings done by the keyframe animators, and "roughs", which are drawings created inbetween the production drawings and the actual genga.

In case of direct conflicts between first-tier sources, Renewal takes precedence over the Unremastered version, Director's Cut versions over On-Air versions, and End of Evangelion over the two ending episodes of the TV series. Non-contradictions include Renewal's removal of the mystery images superimposed over the Rei clones in Episode 23' because nothing in the show actually contradicts them. Drafts and unfinished scrips in general, like the Ep 24 drafts, the unfinished EoE screenplay or details from the 10+ different drafts for Eva 2.0 presented in the 2.0 CRC should be treated as non-canon, though they help illustrate the production process and evolution of the story and characterization.

The production process roughly for an Evangelion episode roughly boils down to:

• Neon Genesis Evangelion Proposal early concepts, further discussion
• Draft 1: Scriptwriter after getting Anno's outline
• Draft 2: Scriptwriter after board meetings - he takes in suggestions from staff, but this is still not a consensus nor does it receive Anno's blessing, as he still has no direct involvement.
• Definitive Draft: as present in Evangelion Original, this is the first one includes Anno's treatment of it, and after that he he actually approves it.
• Storyboard stage, which also gets Anno's treatments.
• Refined script sent to the seiyuu
• Final script, as published on the DVDs.

Tier 2: Statements made by the show's creators, principally Anno.

The most famous example of this is Anno's statement that Kaji was not shot by any of the main characters, but by a nameless assassin sent by either Nerv's or Seele's security division. Anno rarely comments on NGE, so when he does you know that he feels that it's an important issue. In this case, he was so shocked that many people believed that the assassin was Misato that he issued an explicit denial and even retconned the "evidence" for Misato supposedly killing Kaji in the Director's Cuts version of Episode 21. As there is no credible evidence in the only higher tier, the series itself, that Misato is the assassin, Anno's statement is canon.

Take care to consider how not all staffers should be treated equally, however:

• Hideaki Anno is generally considered the "creator" of Evangelion, and it can be broadly assumed that Evangelion is his brainchild, as he had ultimate control over everything, except some commercial aspects, like A Cruel Angel's Thesis, merchandising etc. However, Evangelion is still a collaborative work, and he has taken suggestions from other staffers. Regardless, his is the final word.
• Kazuya Tsurumaki was assistant director, storyboard artist, and assistant character designer for Evangelion. He has had significant influence in adjusting several aspects of Evangelion, and can generally be considered the "No. 2" in Eva.
• Yoshiyuki Sadamoto was the character designer, and made several very important suggestions in the early stages of the conceptualization of Eva, like making Shinji, a boy, as the main character, instead of an "Asuka-like girl". However, he had little to no participation in the making of the actual series, as he was focused on the Evangelion manga, initially intended to be promotional material for the series
• Other writers like Yoji Enokido and Shinji Higuchi and artists like Ikuto Yamashita have more specific and limited participation and influence. Enokido and Yamashita are good examples because they both had some very wild ideas for the series which were rejected.
• There are other staffers like editors and artists of lesser importance whose opinions should be treated as such. While they are of course entitled to them, the fact is that they are not writers or directors and thus have no influence in the actual making of the story and characters.
• Voice actors are a complicated case. Yuko Miyamura, Asuka's voice actress, has notoriously provided input to EoE's ending, with Anno changing Asuka's original line, which he was unsatisfied with, after asking her how she thought Asuka would feel in her situation. Ritsuko's voice actor has also given insight into Gendo's unspoken line in the same movie. However, these same voice actors have often given many, many opinions that range from the bizarre to the simply wrong. You can generally trust them when it comes to describing production, but when it comes to the actual story, they should be considered as opinions, just like other minor staffers.

It's worth taking into account that some goals, opinions and objectives change over time. For instance, the December 2006 issue of Newtype magazine has producer Toshimichi Otsuki mentioning "the new story takes place in the same period as the 1995 TV series", which implies that the major events from the new movies occur relatively close to the time they occur in the TV Series. However, the events in the Rebuild series have clearly been had their dates moved forward, with 2.0 taking place in 2017-2018 for an as of yet unknown reason. As such, Otsuki was either simply wrong, or he was expressing something that, while true in 2006, was eventually changed when the movies were released. It's also possible he was simply not specific enough, and while events like Second Impact seem to take place at roughly the same time in the Rebuilds, the rest of the story had their dates changed. That is why one should always pay attention to the surrounding context, date, and who exactly said it. Remember also that interviews aren't guidelines proper, but also conversations, and interviewees can joke, be coy, mislead, or give half-answers. Anno in particular loves doing this.

Tier 3: Official Supplemental Sources.

See also: Neon Genesis Evangelion Timeline.

All thirty issues of Evangelion Chronicle

Tier 3 is where the information starts to get a little less reliable, and must be carefully checked against the evidence presented in the series. For instance, the Red Cross Book has:

"[Angels (SHITO)] Beings originated from the source of life called Lilith. They take various sizes and shapes: from a giant octahedron to a minute Angel the size of bacteria, or even a "shadow" Angel without tangible form. Borrowing Fuyutsuki's words in episode 26', it seems that Angels are beings which got the "Fruit of Life" whereas humanity got the "Fruit of Wisdom". In other words, "Angels" are another form of humankind with the same potential as humans. Thus, humans are the 18th Angel."

The first line of the above is blatantly incorrect because it contradicts the evidence presented in the series that Adam gave birth to the Angels. For instance, Kaworu in episode 24, calls Adam "our Mother" before realizing that he is actually looking at Lilith. The above reference as to the Angels' origins is therefore not canon. This does not mean, however that you should throw out the Red Cross Book altogether. It should be considered reliable in places where it does support the evidence presented in the series, for instance:

"[Rei Ayanami] The First Children, and dedicated pilot of Eva-00. A young girl who apparently lacks emotions. Her body was created from the salvaged remains of Yui Ikari after Yui was taken into the Eva, and numerous Rei clones were then prepared in Terminal Dogma so that when one Rei dies she can be replaced by another. The present Rei is the third. The first was killed by Dr. Naoko Akagi, and the second died in battle against the 16th Angel. Although the personalities of these three Rei differ from one another, this is due to environmental factors. Their soul is one and the same, and it appears to have been that of Lilith. At the final stage of the Instrumentality Project, Rei betrayed Gendou, returned to Lilith of her own judgment and entrusted the future to Gendou's son -- Shinji Ikari. Birth date: unknown"

The above is perfectly in keeping with what we see in the series and is thus canon.

Differences among Tier 3 sources

Not all sources are created equal, however. Anime supplemental sources, not unlike those present in other media, can be of varying degrees of reliability, consistency, and oversight or even acknowledgment by the show's actual creators. Several explicitly non-canon material can be taken as "official proof" if one is not careful enough, or presented as such, knowingly or not, partly thanks to the language barrier relative to Japanese sources. The "gold standards", in order of release, usually are considered to be:

• Newtype 100% Collection (1997) is a guide produced by Newtype magazine. This was actually made in conjunction with Gainax, and include many officially verified information and interviews.
• The Newtype Film Books (1996) provide sanctioned commentary and some background info for each episode. They mostly state the obvious but can be useful in clearing up some things that aren't completely clear or ambiguous. A notable example is how they mentioned the then common theory that Misato had killed Kaji in Episode 21, which would later be retconned in the Director's Cut version.
• The Death and Rebirth program book and the Red Cross Book (1997), the popular name for the End of Evangelion program book, were created very close to the series' or in this case EoE's release, even if they are not necessarily written by Anno and co., it's the sort of stuff that they'd have the most oversight over. These books were distributed in Japanese movie theatres with the original theatrical showings of D&R and EoE. Program books or pamphlets such as these are distributed to moviegoers in Japanese theaters in order to provide context and information for viewers. Naturally, because D&R is mostly a recap of the series, it also applies to it.

• The Cardass Masters Game (1998) is of less clear reliability, but uses the RCB text almost verbatim and was, of course, released very close to the series and EoE. It was the most recent and comprehensive information source for the series in the early years of the Evangelion fanbase.
• The Classified Information (2003) files are in a bit of a gray zone. They were not written by Gainax but instead were written by the NGE2 game developers in order to provide further context to the series, after interviewing Gainax staff. This is hardly an ideal arrangement, but the CI are used because they are so useful and overall help explain so much, and in fact, there is additional evidence that the First Ancestral Race and other elements present in it were conceptualized by the writers before, but were eventually not featured in the anime, only to be slowly re-introduced over time.

• Evangelion Chronicle (2007) is an encyclopedia-like collection that provides all sorts of information, and it is also considered the most recent "gold" standard. It's worth mentioning that even this mostly consists of recycled information or simply stating the obvious. Like most "1000 Facts About Your Favorite Franchise" guides, a lot of it is inconsequential, "filler" information, and it is presented in an inconsistent manner, as it was entirely made by outsiders, even if it does have supervision by Gainax.

However, several sources are written with more questionable veracity, oversight, or consistency. Because there is such a gargantuan variety of additional Evangelion material, there is no reason to believe that every single one of them, let alone every single thing written in them, is approved, overseen or even known by the show's creators. Thanks to this, there are multiple inconsistencies and contradictions among them. This is when things get complicated. Often, these books do little but fill 150+ pages with fluff that's either regurgitating things that are plainly obvious in the series itself, and *maybe* things that are present in other, less readily available but also previously existing sources like storyboards. This is hardly unique to Eva, as all sorts of media can attest to having "99 Things You Must Know About Your Favourite Media Franchise" publications that bring little new info to the table. Sometimes they will include an interview or two that might give insight into something new, though those are also to be treated separately from the rest of these publications, as mentioned above.

Misattributions and non-canon sources

There are several sources that are circulated around the Internet as "official Evangelion sources" that are anything but. Several manuals and guides are written with specific purposes and are not and are not even claiming to be canon, despite being "approved." It should be noted, however, that licenced, official, and canon are not the same thing. For instance, "licenced" material includes dozens of pornographic doujinshi anthologies that were collected and re-printed under Gainax authorization. Though these are "licensed", they are not even trying to claim they are official. The only real difference those have from completely fan-made material is that they have an ISBN and might be sold beyond fan markets. There are also fan books that have multiple problems, and those include both books that were licenced by Gainax (much like these doujinshi) or completely fan-made ones. There is also a wide variety of promotional material that present, for instance, "Q&A for true (character) fans!" that are created with such obvious commercialism in mind that they should hardly be taken seriously, particularly when they directly contradict other more "serious" sources very often. Similarly, there are third party sources and guidebooks that are not official but include interviews with staff members and others, like the Ogata interview on the EoE choking scene from Koji Ido's Evangelion Forever.

This also applies to guides, manuals and such written specifically for video games and spin-offs. They only exist to inform the reader in regards to what is present inside the continuity of those spin-offs, not the series itself. This, naturally, also applies to merchandise, figures and such. Some sources, like the Eva Fan Club are also "official" but simply consist of fan letters and theories, and do not constitute official statements by the creators. Likewise, the Rebuild movies and Sadamoto's manga are official, but are not canon as they are part of their own, separate continuities. Canon proper is what is seen in the series. Also note that, thanks to the relative mainstream popularity of Eva and anime in some non-English speaking Western markets compared to its relatively niche status in the US and UK, particularly in the 90s and early 00s, there are many more licensed translations of Evangelion supplemental material, for instance, the Newtype 100% Collection has translations in at least Spanish and French. In keeping with the inconsistency with supplemental material overall, they even share some mistakes including some paragraphs entirely altered from the Japanese originals, and some fans have used these "new" paragraphs as evidence in the past. As such, it's a good idea to try to check the Japanese originals whenever possible, as mistakes and even double translations seem to exist in the European translations also. There have also been instances of Chinese releases being presented as the Japanese originals, and because these languages share a writing system (kanji), that might fool an untrained eye if one does not verify it.

It's also worth noticing that sometimes official sources are misquoted or misclaimed. For instance, there are several cases where an interview with Anno or another senior staffer has been wrongly represented, sometimes what the interviewer says or asks is attributed to the interviewee themselves, or sections of the publication that contain the interview, but are not part of the actual interview, are attributed to these Eva staffers. For instance, Anno or Tsurumaki can get interviewed for a magazines (in a regular issue of such magazines and not special guides like Newtype 100%), and fan letters inside that magazine, or articles written by the magazine's staff or other writers concerning the anime, have been claimed to have come straight from Anno in the past, despite the interviewee only having control over what is said in their own interviews and the actual magazine making a clear differentiation between them. Be wary of these affirmations - as a rule of thumb, if someone says that "Anno said this" or "Anno said that", or simply said "an official Evangelion/Gainax source", without providing the specific source, it is very likely they are simply repeating hearsay, rumours, or distortions, unknowingly or not.

Particularly, considering Gainax has not been in control of the Evangelion brand for almost a decade, and the fact that there are many other Evangelion staffers that have given interviews, particularly considering Anno's stance that he will not explain everything, quoting "Gainax" or "Anno" specifically is usually an indicator of this, especially if "Gainax" is mentioned in regards to the Rebuilds or if "Gainax" is claimed to have made a recent statement - or really anything past 2007, as by then all the staff actually responsible for Eva had already moved to Khara. Thankfully, there are ample resources collected by fans over time that you can refer to yourself, with hundreds of pages of material collected in the below links.

Gwern's source anthology

Statements by Evangelion Staff

Inconsistencies

A relatively inoffensive example about inconsistencies in material is how Asuka's birthdate is stated to be December 4th, 2001 in multiple supplemental material. This is following anime industry convention of matching characters' birthdates with their voice actors'. Except, these materials also state Asuka as being 14, when evidence president in the show indicates that she was actually 13, at least up until the last episodes, during the vast majority of the series. It doesn't invalidate the information per se, but it goes to show how some of it is inconsequential or not having had any actual influence in the series, as it wasn't an actual part of building her character.

A more particular example is the complete series' timeline provided in the Ayanami Raising Project game. Unlike NGE2, this game doesn't seem to have any involvement from Gainax writing staff. However, while this timeline might prove useful at least to orientate a fan, it bizarrely states events during Episode 18 and 19, and events during Episode 23 to have happened in January and March of 2016, respectively, despite Maya's laptop in End of Evangelion placing the latter events date in 2015. It also contradicts the dates shown in Episode 9, with Israfel's destruction being safely attributable to September 11th, 2015. The computers in Episode 20 also show Shinji's 30-day long absorption to be during 2015. This is one example of a "poor" supplemental source directly contradicting the series. It also contradicts dates from the D&R program book.

This isn't necessarily a problem however, as the timeline contained within the game can easily be taken to only apply to the game's own internal continuity. It is, however, an example of why one should avoid using non-canon material as evidence to be used for the series, even though this material is fully licensed and official.

There are several bigger offences, however, to less "objective" points that seem to be closer to being a matter of interpretation, or are simply not set in stone as the material might appear to be. For instance, the height of the Evangelions in the series varies widely during the series, from 40 to 200 meters tall, but Chronicle gives them a single height. It also provides heights for the characters that are not consistent within the series. Many aspects such as these are generally inconsequential and can be taken to be more of a general interpretation, as even the animators that reproduced Sadamoto's design weren't guided by them, partially because Sadamoto himself did not specify any such strict standards. The aforementioned example regarding Asuka's birthdate was possibly even made by the Chronicle writers themselves, as a nod to that practice in the anime industry, but should generally not be taken an important factor in the series, given, again, the complete lack of even an allusion to them in the series, as has been proposed by some theories of certain episodes having specific meanings and/or timeframes based on these birthdates.

This is something of a grey zone, however, as there are instances where this does have a concrete impact, since this is also the case with the Classified Information adding back significant lore in a somewhat retroactive manner after Anno had eventually excised it from the original series, only to gradually re-add it. Unlike the birthdates, however, this has real impact on understanding the show, despite being totally absent from it, as it actually was part of the writing process and worldbuilding. As such, exercise caution and try to consider authorial intent and common sense. Neon Genesis Evangelion Proposal is a document regarding the very early conceptualization of Evangelion and should obviously not be used as source for anything depicted in the actual series.

Tier 4: The Manga

Several events are exclusive to the manga continuity, some are used in fanon to compliment the series

As stated above, the Evangelion manga has established its own canonicity, separate from the television series. When debating the series, the manga can be useful mainly as a supplement. For instance, if the manga and the series both say that Kaji misidentifies Lilith as Adam then it must be true. What one should never do is try to claim that facts that are present only in the manga are also true in the anime. For instance, the notion that Asuka is a test tube baby is true only in the manga; in the anime, the man identified as her father is, in fact, her real father. Evidently, this is a direct contradiction to the anime. Some people claim that the manga should be considered canon in instances where the anime is silent, such as Kaji's backstory, but even that seems to be very ill-advised. Shinji's backstory is also expanded upon but, unlike Kaji's, it contradicts what we do know about him in the anime in several points. Sadamoto has explained more than a few of his writing decisions as being the result of him experimenting with what he thought would be interesting, and in many cases this was done many years after NGE and EoE were released, and thus shouldn't be taken as being part of the same creative impetus as Anno's, but rather as another author's interpretation and extension of them.

Unlike it is sometimes assumed, the manga is in fact not the original version of the story, but instead it was created as a supplemental designed to promote the TV series and was continued thanks to the series' popularity. Sadamoto has also repeatedly stated that the manga is his own individual work and should never be used as a reference for anything in the anime or the Rebuilds. Sadamoto has also stated he made the manga entirely on his own, without consulting anyone, in contrast to the anime's more collaborative production. He has also denied links to the Rebuild movies.

Tier 5: Statements Made by Those who Distribute Eva outside of Japan

These are the least reliable of any of the official sources. It's evident, in fact, from some of their statements that the people at ADV and Manga Entertainment have a less than perfect understanding of Evangelion, sometimes giving credence to some of the most infamous "theories" that have sprung up in the online community. For instance, in her EOE commentary, Amanda Winn Lee seems to support the bizarre theory that it's not really Asuka on the beach at the end of the movie, but instead it's a "combination girl" of Asuka, Rei and Misato. The "evidence" presented for this is that her eyes are the wrong color. The trouble is that they aren't the wrong color, they're just reflecting the scene's ambient lighting in certain shots. In other shots you can see that they are, in fact, their normal blue. Likewise, in ADV's Episode 19 commentary, their special guest Sean McCoy states that the Unit-01 berserk incidents are Shinji's subconscious taking over the Eva, and that Unit-01 taking the S-2 Engine into herself represents Shinji declaring independence from his mother and becoming a man. In fact, the exact opposite is true. The evidence presented in the series is that the berserk incidents are Shinji's mother Yui, Unit-01's soul, taking control. The berserk incidents always take place when Unit-01 is out of power and can't be controlled by the pilot, and Ritsuko even says "She's awakened." In short, statements from these sources need to be taken with several grains of salt: they are fans of the series, and they've watched it a great deal, but they do not know significantly more about it (as in access to "behind the scenes information") than basic fans do.

• The (in)famous Mythology of Evangelion bonus feature in ADV's Platinum Collection, is a good example of ADV's staffers greatly overreaching and presenting their own theories as fact, even when they are grossly inaccurate. This would be bad enough, but they also make several false claims about Anno having said this or that. This is also contained in the EoE DVD audio commentary track, affectionately called the Commentary of Evil.
• Carl Horn is the editor of the manga in English, and several spin-offs as well. He has several industry contacts and experience, and has displayed an intimate knowledge of Eva, Anno and Gainax, and written a number of informative material and analysis.
• The Netflix release is the first one that seems to have received close oversight from Evangelion's creators. This is in contrast to ADV, which took some considerable creative liberties and produced several inconsistencies and mistranslations that have created misconceptions among fans for twenty years. You can see this explained in detail here. Because of this, the Netflix localization should always take priority now. Khara's in-house translator Dan Kanemitsu is responsible for this release, but he has very limited statements in English.

Separate continuities

NGE is rarely this fluffy.

The Rebuild of Evangelion series classifies as a wholly separate continuity with its own backstory, which may not be applicable to the TV series and shall be treated as such. Although minor details such as Eva-01's blood type and the Lilin romanization can be accepted as official, even these might have to be viewed on a case-by-case basis if necessary. Since this site primarily deals with the TV series (And Rebuild is still a work in progress), creating separate Tiers of Canonicity for Rebuild would be premature as best, although it is not inconceivable that it would be done sometime in future.

Spin-offs and games

Besides the anime, manga and Rebuild movies, the Evangelion franchise also includes a wide variety of spin-off manga such as Shinji Ikari Raising Project and Angelic Days, as well as games such as Girlfriend of Steel. Along with a multitude of merchandise, this material is made by outsourced companies and authors with no link to Evangelion itself, and are produced for purely commercial purposes, with no Gainax/Khara oversight. Though they are technically "approved" by them, in effect pretty much all possible and impossible scenarios are depicted in these materials, as long as they can make money. Neon Genesis Evangelion 2 is a good example of this in the video game side of things, with its over 20 absurd scenarios such as Ritsuko seducing Kaworu and Aoba dating Maya - this should, of course, be treated separately from the Classified Information.. On the spin-off side of things, things range between "sanitized" romantic comedies like Angelic Days featuring much more stable and altered characters and the constant ecchi bombardment of SIRP, to Evangelion Anima on the other extreme, with loli neko Mari, multiple loli Rei clones, Asuka fusing with her Eva and more. Anyone that is actually familiar with the extra-canon Evangelion spin-offs should be able to tell how completely disconnected from the "main" Evangelion continuity they truly are.

It is thus, highly inaccurate to say they are official, let alone "approved/endorsed by Anno". In fact, Anno himself is directly quoted that he is indifferent to what other authors do with his franchise, and that it is all "a matter of economics". This should hardly come as a surprise, since the bulk of anime profits are not in fact generated from merchandise and licenced material sales, not home media, box office or even advertising.

Secondary and Tertiary sources

Evangelion, being a massive cultural phenomenon in Japan, has been written about extensively by independent parties. These range from other anime and manga creators with or without direct or indirect influence on Evangelion, such as Ikuhara, Miyazaki, Go Nagai and others, but without actually being a part of the production process. While their opinion on Eva is certainly valuable from an artistic and cultural perspective, they are not sources by themselves on determining what is canon.

Take into consideration how scholarship classifies primary, secondary and tertiary sources. From Wikipedia's guide on source usage:

• Primary sources are original materials that are close to an event, and are often accounts written by people who are directly involved. They offer an insider's view of an event, a period of history, a work of art, a political decision, and so on.

• A secondary source provides an author's own thinking based on primary sources, generally at least one step removed from an event. It contains an author's analysis, evaluation, interpretation, or synthesis of the facts, evidence, concepts, and ideas taken from primary sources.

• Tertiary sources are publications such as encyclopedias and other compendia that summarize primary and secondary sources. Wikipedia is considered to be a tertiary source.

In Eva's case, this can include some third-party sources like The Unnoficial Guide. Those are questionable for the most part, but might have some information not found elsewhere, though it can be hard to identify them as such. This also applies to news articles and such. Japanese publications like Newtype are generally more trustworthy, though Western sources can vary. Some publications like AnimeNewsNetwork are of consistently high quality in their fact-checking and editorial consistency. However, other sites can fail at those at the most basic levels, often including serious misinformations and misconceptions, particularly when Evangelion is in the news and can attract clicks. Exercise caution in using them.