[USA] Madison, Wisconsin: Sunday 21 September. Picnic in the park hosted by bi group Wisconsin 521!
The organisers say,
Celebrate Bisexuality Day is September 23rd, so we’re going to have a shindig on the 21st! There will be cake, door prizes, games, food, and fabulous non-monosexuals. We’ll be hanging out at Vilas Park, on the Drake Street side of things. RSVP if you think you’re going to come, bring a dish to pass if you can, and let’s have a great time!