1. Battle of Bunker Hill: On June 24, 1775, the Battle of Bunker Hill took place during the early stages of the American Revolutionary War. The battle was fought in the Charlestown neighborhood of Boston, Massachusetts, and was a key moment in the conflict.

2. Massachusetts becomes a state: June 24, 1780, marks the day that Massachusetts formally became a state. The state was one of the original 13 colonies and had been part of British North America since 1620.

3. Death of Nathaniel Hawthorne: Nathaniel Hawthorne, the celebrated author of The Scarlet Letter, died in Lenox, Massachusetts, on June 24, 1864. Hawthorne was born in Salem, Massachusetts, in 1804 and became one of the most important American writers of the 19th century.

4. Grateful Dead concert: On June 24, 1974, the Grateful Dead played a concert at the Boston Garden in Massachusetts. The concert is famous among Deadheads for its incredible energy and the band's long improvised jams.

5. Same-sex marriage legalized: On June 24, 2003, Massachusetts became the first state in the United States to legalize same-sex marriage. The decision was made by the Massachusetts Supreme Judicial Court in the case of Goodridge v. Department of Public Health, which found that the state's prohibition on same-sex marriage was unconstitutional.