April 25 has significant historical events in the state of South Carolina. Here are five interesting facts about the day:

1. The First Shots of the Civil War - On April 25, 1861, the Civil War officially began with the firing on Fort Sumter in Charleston Harbor. Confederate forces attacked the fort, which was held by Union troops, leading to a 34-hour battle that ended with the Union's surrender.

2. Establishment of Clemson University - In 1888, the South Carolina General Assembly established Clemson Agricultural College, now known as Clemson University. The college was named after Thomas Clemson, who bequeathed his land and money to the state to establish an agricultural college.

3. Sinking of H.L. Hunley - On April 25, 1864, the Confederate submarine, H.L. Hunley, sank the Union warship, USS Housatonic, becoming the first submarine to sink a battleship in combat. Unfortunately, the Hunley also sank during the attack, and all eight crew members died.

4. The Start of the Charleston Tea Party - Inspired by the Boston Tea Party, on April 25, 1774, patriots in Charleston organized a boycott of British goods to protest the Tea Act. The boycott was known as the Charleston Tea Party and was one of the first organized protests against British rule in the American colonies.

5. The Construction of the U.S. Custom House - In 1853, the U.S. Custom House in Charleston began construction. The building was designed by architect Ammi Burnham Young and is now a National Historic Landmark. It served as a customs house until 1939 and now houses federal offices.