LGBTQ+
Harvey Milk, Sacred Band Of Thebes, Stonewall Riots...
Any people or events that showcase gay people taking up arms in some capacity. Basically, confront the stereotype that gay people are weak or fragile.
If you can, try to get some of the attendees to record their experiences with gay culture and the Community as a whole - autobiographical writing is good, but an interview format would be better I think (sufficient staff/volunteers permitting)
It would be a nice way to demonstrate how even if they aren't queer, they have a place and impact on the community, as well as recording stories that will likely be lost in a few years.
It's fairly recent, but Matthew's law:
https://en.m.wikipedia.org/wiki/Matthew_Shepard_and_James_Byrd_Jr._Hate_Crimes_Prevention_Act