Timeline

The year 2238 is (surprisingly) the year of FOnline:2238. It is situated right before the beginning of Fallout 2), and 76 years after the end of Fallout 1.

A few steps back...

• 2220: Election of Richard "Dick" Richardson, the Enclave's leader, and the president of the USA. Enclave develops the Adv. Power Armor MKII.
• 2231: The Chosen One is born in Arroyo.
• 2235: Building of Gecko.
• 2236: An Enclave's scout finds the remains of the Mariposa Military Base. The excavation process begins, searching for the FEV. Frank Horrigan gets in contact with the virus and begins to mutate.
• 2237: The Enclave abandons the Mariposa Military Base, having obtained the FEV data, taking with it Frank Horrigan that is gradually mutating.

2238

• Harold arrives in Gecko, and (with a lot of shaking of his head) he does his best to help the ghouls with the running of the Nuclear Power Plant
• NCR explorers discover Eagle Rock and quickly realize that it is a source of energy and some water -- albeit a dangerous source. Within the year, NCR miners are there, and more come shortly thereafter. Many of them are dregs/outcasts from other communities. The town of Burham Springs is established by Trent Burham, a wealthy NCR mine merchant

Later on : 2239-2242

• 2241: Junktown becomes a part of the NCR state.
• 2241: Fallout 2 begins.
• 2242: Vault 13 is opened and attacked by the Enclave. Later, Fallout 2 ends.

See also

The Vault's Timeline, much more complete.