International Day Against Homophobia, Biphobia, Interphobia, Transphobia and Aro/Acephobia
The main purpose of the 17 May mobilisations is to raise awareness of violence, discrimination, and repression of queer communities worldwide, which in turn provides an opportunity to take action and engage in dialogue with the media, policymakers, public opinion, and wider civil society. (Wikipedia)

Aro = Aromantic | Ace = Asexual