Thread:Zeldakasumi/@comment-26377724-20151004102623/@comment-7888499-20151005103524

Ah, it helps that you have already seen Chaos;Head.

In that case I will give you a short run-through of some of the pieces of evidence for C;H and just very lightly explain C;C.

Fall 2009 - The events of Chaos;Head (All of the Alpha and Beta Attractor Fields, including the Steins Gate world line) (To be exact the VN starts on Sep. 28th and ends in mid-November)
 * In 2010, Okabe who originated from Beta 1.130426% remembers the New Gen murders in Shibuya from the year before. (Source: S;G VN chapter 2)
 * The Shinkou Ltd. Co.'s Gero Frogs that were made popular as a part of experiments in manipulating GE-ratings and bio-rhythms in Shibuya are present and familiar to S;G characters in both the Alpha and Beta world lines. (Source: There is a frog in the lab among other places, Okabe on Gero Frogs in S;G VN prologue and in chapter 2 Okabe and Luka mails
 * An @channeler in the John Titor discussion in the Alpha AF mentions the Shibuya earthquake from 2009. The Third Melt from C;H was reported as an earthquake. (Source: S;G VN chapter 2)
 * Due to the unusual nature of Lightning-Fast Knight-Hart Nishijou Takumi's origin and character development any post-2009 title in which he appears in is a good indication that the events of C;H occurred in that world line. Knight-Hart Takumi is mentioned in the Alpha Attractor Field both by Daru in the S;G VN chapter 1 and the short story "The Distant Valhalla". Knight-Hart Takumi is further mentioned in the C;C and R;N VNs.

Fall 2015 - The events of Chaos;Child (Steins Gate world line) To keep from spoiling you, I won't give much proof just that
 * The very premise of Chaos;Child requires the events Chaos;Head to have occurred.
 * One of the characters is acquainted with both Kurisu and Daru in such a way that A) Kurisu must be alive, B) Kurisu must not be forced to work for SERN, and C) Daru is in Akihabara, which out of Beta and Alpha equals the Steins Gate world line.

Summer 2019 through Feb. 28, 2020 - The events of Robotics;Notes We know from R;N that Kimijima Kou put Yukifune Airi to sleep in December 2008 and started up the Airi communication interface A.I. up on the IRUO. servers on Dec. 24th, which means that since Geji-nee appears in September 2009 in C;H, Airi was probably frozen in sleep in both the Alpha and Beta AFs. (Source: Geji-nee being mentioned in both the C;H and S;G VNs)
 * This is obviously Steins Gate world line. However, -This is just some bonus material and not because I think that you will want to use it on the chart.- Geji-nee is mentioned in both the Chaos;Head and Steins;Gate VNs, which indicates that Kimishima Kou commited some of his deeds in 2008-9 in both the Alpha and Beta Attractor Fields as well.