1. On March 3, 1781, the Battle of Blackstock's Farm took place in present-day Union County, South Carolina, during the American Revolutionary War. The Patriots, led by General Thomas Sumter, defeated the British and Loyalist forces in a significant victory.

2. In 1845, the South Carolina Legislature adopted the current state flag design on March 3. The flag features a blue field with a white palmetto tree and a crescent, representing the state's role in the American Revolution.

3. On March 3, 1865, Union troops under General William T. Sherman arrived in Columbia, South Carolina, and set fire to many buildings in the city. The event, known as the Burning of Columbia, was a significant blow to the Confederate war effort.

4. In 1913, the South Carolina General Assembly passed the Blease-Simmons Child Labor Act on March 3, limiting the hours and conditions children could work in factories and mines. It was one of the first child labor laws in the South.

5. On March 3, 1931, the South Carolina State House was officially dedicated in Columbia. The building, which features a distinctive copper dome, had been under construction for more than a decade and would serve as the seat of state government for generations to come.