Brunswick, town in southeastern Georgia, seat of Glynn County. Brunswick is situated on a landlocked harbor in Oglethorpe Bay, 13 km (8 mi) from the Atlantic Ocean, and 104 km (65 mi) southwest of Savannah. The area was first visited by Spanish missionaries in 1568. In 1736 British colonist General James Edward Oglethorpe built Fort Frederica, which is now Fort Frederica National Monument, in Brunswick. In 1742 a Spanish force invaded Georgia, and in the subsequent Battle of Bloody Marsh, near Fort Frederica, Oglethorpe and his troops defeated the invaders. This ended Spanish attempts to capture Georgia. Brunswick was founded in 1771 by order of the colonial council, and was incorporated as a city in 1856. The town is a year-round resort. Population (1990) 16,443; (2000) 15,600.