Go Topless Day is observed worldwide on the nearest Sunday to August 26, celebrating women's rights and gender equality. This event originated in 2007 when an American organization in Nevada established it to encourage women to go topless in public, marking the anniversary of American women earning the right to vote in 1920. August 26 is also recognized as Women's Equality Day by the U.S. Congress. Participants often engage in various activities, including marches and themed dinners, and men who support the event are encouraged to cover their chests with brassieres or bikinis. The event has expanded beyond the United States, with the first observance outside the country taking place in Canada, and now includes activities in North and South America, Europe, Asia, and Africa. To avoid conflicts with law enforcement, activists are advised to be aware of the topless laws in their respective states and cities.