Celebrate Bisexuality Day

Celebrate Bisexuality Day (also called Bisexual Pride Day, Bi Visibility Day, CBD, Bisexual Pride and Bi Visibility Day, and Bisexuality+ Day) is observed annually on September 23 to recognize and celebrate bisexual people, the bisexual community, and the history of bisexuality. == History == A precursor to the first official observance came when the oldest national bisexuality organization in the United States, BiNet USA, was founded in 1990.

Source: Wikipedia — Celebrate Bisexuality Day (CC BY-SA 4.0)