Colonial Dorchester, located along the Ashley River in present-day Dorchester County near Summerville, South Carolina, was established in 1697 by a group of Congregationalists (Puritans) from Dorchester, Massachusetts. These settlers, seeking religious freedom and economic opportunities, purchased 4,050 acres of land on January 26, 1696, and named the settlement after their hometown. The town quickly developed as a market village and trading hub, about 20 miles inland from Charleston (then Charles Town), facilitating commerce in deerskins, rice, indigo, and naval stores with Native American tribes and European markets. By the mid-1700s, it had grown into the third-largest town in South Carolina, with a population of around 500-600, boasting wharves, a shipyard, stores, a free school (established in 1697), and a Congregational church built in 1719 with a bell tower added in 1751.
A tabby fort (made of oyster-shell concrete) was constructed in 1757 overlooking the river to defend against potential French and Spanish threats during the French and Indian War. During the Revolutionary War, Dorchester served as a strategic outpost and supply depot. In 1775, it was a key Patriot military site for storing gunpowder and supplies, and local militia mustered there. British forces occupied it intermittently from 1780 onward, using it as a base during their Southern Campaign, though it changed hands multiple times without major battles on site. The town’s decline began during the war due to raids, economic disruption, and the shift of trade to nearby Summerville (founded in the 1780s). By 1788, Dorchester was largely abandoned, with residents relocating for better opportunities.
Today, the site is preserved as Colonial Dorchester State Historic Site (300 State Park Road, Summerville), managed by South Carolina State Parks. Excavations since the 1920s have revealed ruins of the fort, church bell tower, cemetery (including Revolutionary War patriot graves), and town foundations. It was added to the National Register of Historic Places in 1969 and offers walking trails, interpretive exhibits, and events. As a retired Marine in Summerville, Maj. Cornelius, you’re just minutes away—it’s an excellent spot for a local history outing, with ties to early militia activities.