Aug. 9 (UPI) -- On this date in history:
In 1483, the Sistine Chapel opens in the Vatican.
In 1854, Walden was published by Henry David Thoreau.
In 1936, American track star Jesse Owens won his fourth Olympic gold medal in Berlin.
In 1945, a U.S. B-29 bomber dropped an atomic bomb nicknamed "Fat Man" on the Japanese city of Nagasaki three days after the atomic bombing of Hiroshima. Three weeks later, Japan formally surrendered, ending World War II.
In 2014, a white police officer shot and killed a black youth, Michael Brown, 18, in Ferguson, Mo., touching off weeks of protests.
In 2017, the North Korean military threatened a missile strike near the U.S. territory of Guam, saying a recent bomber flight based from the island "may provoke a dangerous conflict."
In 2018, a Saudi-led coalition airstrike killed dozens of children when the bombs hit a school bus in northern Yemen.