1. In 1863, the Confederate army in South Carolina passed a law opening government positions to African Americans. This was a significant move towards racial equality during the Civil War Era.

2. On November 17, 1917, the United States declared war on Germany, officially entering World War I. Many soldiers from South Carolina fought in the war, and the state made significant contributions to the war effort.

3. On November 17, 1942, a massive explosion at the Charleston Naval Shipyard killed many workers and caused significant damage to the facility. This tragedy had a profound impact on the community and the war effort.

4. In 1955, South Carolina Governor James F. Byrnes signed legislation that established Clemson University as a co-educational institution. This decision paved the way for women to receive degrees from Clemson and helped to increase diversity and opportunities in higher education.

5. In 2011, the Affordable Care Act, also known as Obamacare, was implemented in South Carolina. This law had a significant impact on the state's healthcare system and helped many South Carolinians access affordable healthcare for the first time.