'Star Trek' was an acclaimed series but it made television history in 1968 by featuring the first interracial kiss.

A controversial 1968 episode of "Star Trek" featured the first interracial kiss on television, breaking ground during the nation's civil rights struggle.

William Shatner’s lip lock with Nichelle Nichols wasn't TV’s first interracial kiss, but it might have been the most controversial.

The kiss between the "Star Trek" characters, played by William Shatner and Nichelle Nichols, is widely regarded as one of American TV's first interracial kisses.

Star Trek: Discovery stars Anthony Rapp and Wilson Cruz made TV history as the participants in the iconic franchise’s first-ever gay kiss.

It is the first gay male kiss to appear in a “Star Trek” movie or show. While Stamets and Culber’s relationship is groundbreaking, not all viewers were happy about their romantic relationship.

A controversial 1968 episode of "Star Trek" featured the first interracial kiss on television, breaking ground during the nation's civil rights struggle.

'Star Trek' was an acclaimed series but it made television history in 1968 by featuring the first interracial kiss.