World AIDS Day,and its related observances:

Day Without Art

International day dedicated to raising awareness of HIV/AIDS and commemorating those affected by the disease.
World AIDS Day, observed on December 1 and first established by the World Health Organization in 1988, unites people worldwide in the fight against HIV/AIDS. The day aims to show support for those living with HIV, remember those who have died, and promote prevention and treatment efforts. The related 'Day Without Art' initiative began in 1989 to highlight the impact of the AIDS crisis on the arts community, with museums and galleries presenting alternative programming or closing in solidarity. Activities on World AIDS Day include educational campaigns, memorial ceremonies, art exhibitions, and fundraising events. The observance underscores the ongoing importance of research, care, and reducing stigma around HIV/AIDS.
World AIDS Day Day Without Art

Day Without Art

An international day of action on December 1 when art institutions raise awareness of the AIDS crisis by removing or altering artworks.
Day Without Art was launched in 1989 by the organization Visual AIDS to commemorate artists lost to the AIDS epidemic and to spark reflection on the ongoing crisis. On this day, participating museums, galleries, and cultural centers either close their doors, dim their lights, or cover artwork with black fabric as a powerful visual statement. Programs often include exhibitions, performances, and educational events that highlight the impact of HIV/AIDS on the arts community. Coinciding with World AIDS Day, it promotes solidarity, remembrance, and advocacy for prevention and treatment efforts. By confronting the absence of art, the initiative underscores the vital role of creativity in social awareness and change.
Day Without Art