Guinan

1893: Visited Earth, posed as a socialite in San Francisco, socialized with Mark Twain
Encountered Jean-Luc Picard, for the first time, who had travelled from the 24th Century
22nd Century: Had dealings with Q, relationship with him was hostile
2293: Among the surviving refugees after the Borg destroyed El-Auria;
Rescued by the USS Enterprise-B after being caught in the Nexus
2365: Came aboard the Enterprise-D as the Bartender & manager of Ten Forward
2371: Survived the crash of the Enterprise-D
2400: Moved to Earth, ran a bar in Los Angeles, chose to advance her age