(CNN) The word "first" is probably going to come up a lot on Tuesday.

The House of Representatives is expected to see its first female Native American member. One way or another, Arizona will elect its first female senator. And Nevada might become the first state to have a Legislature made up of a majority of women.

Below is a list of some of the most prominent firsts that could happen this fall:

African-American governors

JUST WATCHED She could become America's first black female governor Replay More Videos ... MUST WATCH She could become America's first black female governor 03:46

A trio of Democratic gubernatorial candidates are each vying to be the first black person to take the governor's mansion in their respective states.