Wikipedia:Selected anniversaries/May 15
May 15: Independence Day in Paraguay (1811); Buddha's Birthday in Hong Kong, Macau and South Korea; Pentecost in Western Christianity (2005).
- 1756 - Seven Years' War: Britain declared war on France, two years after fighting began in Ohio.
- 1928 - Cartoon characters Mickey and Minnie Mouse made their movie debut in Plane Crazy.
- 1934 - Prime Minister Kārlis Ulmanis dissolved the Saeima and established an authoritarian rule in Latvia.
- 1990 - The Portrait of Dr. Gachet by Vincent van Gogh was sold for US$82.5 million, at the time the world's most expensive painting.