The following is a timeline of events pertaining to Assassination Classroom.
The historical timeline relates to events that have occurred prior to the introduction of the story.
March, Year 0
- The original God of Death becomes a guinea pig in Yanagisawa's laboratory.
- Aguri Yukimura and the God of Death's first meeting.
March, Year 1
- 70% of the moon exploded due to one of Yanagisawa's experiment rats.
- Korosensei escaped.
- Korosensei proposes to the world leaders to destroy the Earth one year later, but promises to first teach class 3-E of Kunugigaoka Junior High School within the timeframe.
The current timeline relates to events that have occurred since the introduction of the story.