14th » The first Abolitionism in the United States named abolition society in North America is established. The Pennsylvania Abolition Society known as Society for the Relief of Free Negroes Unlawfully Held in Bondage is organized in Philadelphia, Pennsylvania b
18th » American Revolution: The Battles of Lexington and Concord called British advancement by sea begins; Paul Revere and other riders warn the countryside of the troop movements.
19th » American Revolutionary War: The war begins with an American victory in Concord during the battles of Lexington and Concord.
20th » American Revolutionary War: the Siege of Boston begins, following the battles at Battles of Lexington and Concord called Lexington and Concord.
Famous Birthdays on April in 1775
21st » Alexander Anderson (illustrator) called Alexander Anderson, American illustrator (d. 1870)