Big Bang - 2265 everything prior to TOS
(1966-69) 2265-2269 TOS seasons 1-3
2269-2363 everything between TOS and TNG
(1987-88) 2364 TNG season 1
Not up yet:
(1988-89) 2365 TNG season 2
(1989-90) 2366 TNG season 3
(1990-91) 2367 TNG season 4
(1991-92) 2368 TNG season 5
(1992-93) 2369 TNG season 6, DS9 season 1
(1993-94) 2370 TNG season 7, DS9 season 2
(1994-95) 2371 DS9 season 3, Voyager season 1, Generations
(1995-96) 2372 DS9 season 4, Voyager season 2
(1996-97) 2373 DS9 season 5, Voyager season 3, First Contact
(1997-98) 2374 DS9 season 6, Voyager season 4
(1998-99) 2375 DS9 season 7, Voyager season 5, Insurrection
(1999-2000) 2376 Voyager season 6
(2000-01) 2377 Voyager season 7
(2002) 2378? 79? Nemesis