Berkely, a California city best known for academic achievement, free speech and the arts, made history this week when its city council officially declared 27 September to be Bisexual Pride Day.
It is believed to be the first time any US city has taken this formal step and given bisexuals a day separate from the gay pride celebrations that typically take place in June.
Councilman Kriss Worthington said the idea was 'conceived as a response to the prejudice and marginalization of the bisexual persons by some in both the straight and greater LGBT communities.'
'Increasing bisexual visibility is a way of saying, yes, they do exist, and they deserve our support and acceptance,' Worthington said before the vote.
Brendan Behan, executive director of San Francisco Pride, tells the San Francisco Chronicle that bisexual don't have an easy time trying to fit in with the LGBT community.
'Berkeley's doing a great thing,; he said. 'Unfortunately, even in our own community, bisexuals can be invisible. I've seen bisexuals outright dismissed because of their sexuality.'