1. In 1780, the Battle of Charleston began. This was a major battle in the American Revolution, in which British forces captured the city of Charleston, South Carolina. The siege lasted for almost six weeks, and resulted in the surrender of over 5,000 American soldiers.

2. In 1863, Confederate troops under General James Longstreet launched an unsuccessful attack on Union forces at the Battle of Charleston Harbor. The battle, which took place during the American Civil War, was part of the larger effort to defend Charleston from Union attack.

3. On April 7, 1913, the state of South Carolina officially adopted the Carolina wren as its state bird. The Carolina wren is a small, brown bird with a distinctive song, and is found throughout the southeastern United States.

4. In 1968, civil rights activist Martin Luther King Jr. gave a speech at the annual convention of the South Carolina AFL-CIO in Charleston. In his speech, King called for the end of segregation and discrimination, and emphasized the importance of labor unions in the struggle for civil rights.

5. On April 7, 2003, Columbia, South Carolina became the first city in the United States to institute a ban on smoking in bars and restaurants. The ban, which also included workplaces and public buildings, was controversial at the time but has since been widely adopted in other cities and states.