<P> By the outbreak of the American Revolutionary War, Savannah had become the southernmost commercial port in the Thirteen Colonies . British troops took the city in 1778, and the following year a combined force of American and French soldiers, including Haitians, failed to rout the British at the Siege of Savannah . The British did not leave the city until July 1782 . In December 1804 the state legislature declared Milledgeville the new capital of Georgia . </P> <P> Savannah, a prosperous seaport throughout the nineteenth century, was the Confederacy's sixth most populous city and the prime objective of General William T. Sherman's March to the Sea . Early on December 21, 1864, local authorities negotiated a peaceful surrender to save Savannah from destruction, and Union troops marched into the city at dawn . </P> <P> Savannah was named for the Savannah River, which probably derives from variant names for the Shawnee, a Native American people who migrated to the river in the 1680s . The Shawnee destroyed another Native people, the Westo, and occupied their lands at the head of the Savannah River's navigation on the fall line, near present - day Augusta . These Shawnee, whose Native name was Ša wano ki (literally, "southerners"), were known by several local variants, including Shawano, Savano, Savana and Savannah . Another theory is that the name Savannah refers to the extensive marshlands surrounding the river for miles inland, and is derived from the English term "savanna", a kind of tropical grassland, which was borrowed by the English from Spanish sabana and used in the Southern Colonies . (The Spanish word comes from the Taino word zabana .) Still other theories suggest that the name Savannah originates from Algonquian terms meaning not only "southerners" but perhaps "salt". </P> <P> Savannah lies on the Savannah River, approximately 20 mi (32 km) upriver from the Atlantic Ocean . According to the United States Census Bureau (2011), the city has a total area of 108.7 square miles (281.5 km), of which 103.1 square miles (267.0 km) is land and 5.6 square miles (15 km) is water (5.15%). Savannah is the primary port on the Savannah River and the largest port in the state of Georgia . It is also located near the U.S. Intracoastal Waterway . Georgia's Ogeechee River flows toward the Atlantic Ocean some 16 miles (26 km) south of downtown Savannah, and forms the southern city limit . </P>

Where did the name savannah georgia come from
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