May 25 is the 145th day of the year in the Gregorian calendar, with 220 days remaining until the end of the year. It is often associated with various historical events, holidays, and observances around the world. For example, it is celebrated as Africa Day, which marks the founding of the Organization of African Unity in 1963. In addition to its significance in Africa, May 25 is also recognized for other events. In the United States, it is known as National Wine Day, a day for wine enthusiasts to celebrate and enjoy different varieties of wine.