There aren't many women featured in the Star Trek franchise, so here's a tribute to some of the most powerful leading ladies. Here are the girls and their interesting Star Trek firsts from left to right. Note: (FRN) means Franchise, (TML) means timeline. The difference is that franchise starts with TOS and goes through to ENT, while the timeline technically starts with ENT and goes to VOY. Also- When I say "First ___", I mean "first MAIN CHARACTER ___". Minor characters are for the weeeeeeeaaaak.
First Vulcan aboard a human ship (TML)
VOY- 7 of 9:
First female Borg Drone, First partial-Borg main character(wait, does Picard count as partial-borg?)
TNG- Beverly Crusher:
First female CMO, First female doctor (FRN)
First African-American (FRN), First inter-racial character kiss on an American TV series, First Female promoted to Commander (FRN)
VOY- Kathryn Janeway:
First female Captain
TNG- Deanna Troi:
First Counselor, First [half] Betazoid
DS9- Jadzia Dax:
(Feel totally free to call me on my BS if I'm wrong, remember that I have not seen any VOY or ENT yet)
Many thanks to the delightful Memory-Alpha for helping me with my fact-checking (:gosh bev, I sure do like to draw you like that.