The Journal of Dr. Cain

The Journal of Dr. Cain (ケイン博士の日記) is a feature from the first Mega Man X game detailing what happened before the game from Dr. Cain's point of view. It is present in the English SNES manual, the Japanese Windows version manual, and the book Compendium of Rockman X.

Journal
Note: The dates from the Journal of Dr. Cain are given simply as month and day. The years in the game and manual are stated simply as "21XX." However, the timeline of events are believed to take place in the 2110s, as the copyright of Dr. Cain's computer in the opening scene of the first game shows three years when booting up: 2105, 2109 and 2114. (see game script.)

Mega Man (Archie Comics)
The Journal of Dr. Cain was adapted on issues 34 and 35 from the Mega Man comic book series by Archie Comics.