Major legal victories include Lawrence v. Texas (2003), which decriminalized same-sex conduct in the U.S., and the 2015 Supreme Court ruling that legalized same-sex marriage nationwide.

An umbrella term for people whose gender identity or expression differs from the sex they were assigned at birth. It is an adjective (e.g., "a transgender person"), not a noun.

A term for individuals whose gender identity does not fit strictly into the categories of "man" or "woman".

In the 1950s, groups like the Mattachine Society and Daughters of Bilitis laid the groundwork for modern advocacy.

The distress some individuals feel due to a mismatch between their gender identity and assigned sex. Not all trans people experience dysphoria.