Historical Events on July 21

24 significant historical events occurred on July 21. July 21 has seen various historical events over the centuries, including political changes, military battles, and sports. On this date, the Belgian Revolution in 1831 led to Belgium's independence from the Netherlands. In 1861, the First Battle of Bull Run occurred, the first major land battle of the American Civil War. Formula One racing events and the 2019 Ukrainian parliamentary election have also taken place on July 21.