A Key Event

A Key Event

Events

 * 1955 - The Great Discovery takes place.
 * 1997 - The events of Apology Impossible, Series 21 and Journey Beyond Sodor take place.
 * 1998 - Big World! Big Adventures! and the Australian Episodes of Series 22-24 take place.
 * 1999 - Series 22 and the Chinese and Indian episodes of Series 22-24 take place (except for Apology Impossible which already happened in 1997, the Series 22-24 Australian episodes that already happened in 1998 and Rosie is Red which will take place in 2000)
 * 2000 - The events of the 2000 Annual Stories, Rosie is Red and the Sodor episodes of Series 23 take place (except Steam Team to the Rescue, Out of Site, First Day on Sodor! and Deep Trouble which will take place in 2001).
 * 2001 - The events of the 2001 Annual Stories, Brazil and Italian Episodes of Series 23-24, Steam Team to the Rescue, Out of Site, First Day on Sodor! and Deep Trouble take place.
 * 2002 - The Events of the 2002 Annual Stories, Series 24 (except the Ace's Brave Jump which happened in 1998, Yong Bao and the Tiger which it’s present day took place in 1999 while his backstory was in the 1960’s, Shankar’s Makeover which was in 1999, Thomas and the Forest Engines and Thomas' Not-So-Lucky Day which already happened in 2001) take place.