Question: what time period did avatar the last airbender take place?
Answer: Avatar: The Last Airbender. The entirety of Avatar: The Last Airbender takes place during 99-100 AG. Aang is awakened from his suspended animation in 99 AG and soon learns that Sozin's Comet will return at the end of the summer, which is when Fire Lord Ozai would use it to wipe out more of the Fire Nation's enemies.