What day of the week was April 9, 1942?

The day of the week April 9th, 1942 fell on was a Thursday. Last day of Passover for Jewish people.

World War II: The Battle of Bataan/Bataan Death March United States forces surrender on the Bataan Peninsula. The Japanese Navy launches an air raid on Trincomalee in Ceylon (Sri Lanka); Royal Navy aircraft carrier and Royal Australian Navy Destroyer are sunk off the island's east coast.