“M” is for Mount Dearborn Armory. Situated on an island in the Catawba River in Chester County, Mount Dearborn was initially conceived and selected by President George Washington to be one of the nation's three national arsenal-armories.

“G” is for Grimké, Sarah Moore (1792-1873), and Angelina Emily Grimké (1805-1879). Abolitionists.

“G” is for Grimké, Sarah Moore (1792-1873), and Angelina Emily Grimké (1805-1879). Abolitionists.

“C” is for Columbia, burning of (February 17-18, 1865)

“C” is for Columbia, burning of (February 17-18, 1865)

“C” is for Columbia (Richland County: 2020 population 136,632). Named for Christopher Columbus and created in 1786 as the nation's first truly planned capital city, Columbia has a unique history that took shape in the wilderness near the geographic center of South Carolina.

“C” is for Columbia (Richland County: 2020 population 136,632). Named for Christopher Columbus and created in 1786 as the nation's first truly planned capital city, Columbia has a unique history that took shape in the wilderness near the geographic center of South Carolina.

“R” is for Rutledge, John (ca.1739-1800). Lawyer, jurist, governor.

“R” is for Rutledge, John (ca.1739-1800). Lawyer, jurist, governor.

“P” is for Port Royal, Battle of (November 7, 1861). The Battle of Port Royal culminated an amphibious operation designed to establish a United States military depot on the islands on the southeastern coast to carry out land and sea operations against the Confederacy.