Star Trek Episodes Timeline Infographic Well, I'd reorganize by event instead of episode (1992 was when Khan was frozen, not when the episode took place, sheesh) but as long as we all agree to leave Generations off the chart, I'm happy.
Lieutenant Natasha Yar, better known as Tasha, was a Human Starfleet officer born on Turkana IV, and former security chief on the USS Enterprise-D. Unfortunately, Tasha was killed not even a year into the Enterprise's mission. She was fondly remembered by the Enterprise crew, and an alternate timeline version of Tasha indirectly played a very important role in Romulan politics. Tasha was killed in late 2364 on the planet Vagra II. (Star Trek; TNG)