Georgia is a state in the Southeastern region of the United States. It borders Tennessee to the northwest, North Carolina to the northeast, South Carolina to the east, the Atlantic Ocean to the southeast, Florida to the south, and Alabama to the west. Of the 50 United States, Georgia is the 24th-largest by area and eighth most populous. According to the U.S. Census Bureau, its 2023 estimated population was 11,029,227. Atlanta, a global city, is both the state's capital and its largest city. The Atlanta metropolitan area, with a population of more than 6.3 million people in 2023, is the sixth most populous metropolitan area in the United States and contains about 57% of Georgia's entire population. Other major metropolitan areas in the state include Augusta, Savannah, Columbus, and Macon. The Province of Georgia was established in 1732, with its first settlement occurring in 1733 when Savannah was founded. By 1752, Georgia had transitioned into a British royal colony, making it the last and southernmost of the original Thirteen Colonies. Named in honor of King George II of Great Britain, the Georgia Colony extended from South Carolina down to Spanish Florida and westward to French Louisiana along the Mississippi River. On January 2, 1788, Georgia became the fourth state to ratify the United States Constitution. Between 1802 and 1804, a portion of western Georgia was carved out to create the Mississippi Territory, which eventually became the U.S. states of Alabama and Mississippi. Georgia declared its secession from the Union on January 19, 1861, joining the ranks of the original seven Confederate States. After the Civil War, it was the last state to be readmitted to the Union on July 15, 1870. In the late 19th century, during the post-Reconstruction period, Georgia's economy underwent significant changes, driven by a coalition of influential politicians, business leaders, and journalists, notably Henry W. Grady, who promoted the "New South" ideology focused on reconciliation and industrialization. In the mid-20th century, several notable figures from Georgia, including Martin Luther King Jr., emerged as key leaders in the civil rights movement. Atlanta was chosen to host the 1996 Summer Olympics, celebrating the centennial of the modern Olympic Games. Since 1945, Georgia has experienced significant population and economic expansion, aligning with the larger Sun Belt trend. Between 2007 and 2008, 14 of Georgia's counties were listed among the 100 fastest-growing in the United States. Georgia is defined by a diversity of landscapes, flora, and fauna. The northern part of the state features the Blue Ridge Mountains, which are part of the broader Appalachian Mountain range. Moving south, the Piedmont plateau stretches from the foothills of the Blue Ridge to the Fall Line, an escarpment that marks the transition to the Coastal Plain in the southern region of the state. The highest elevation in the state is Brasstown Bald, reaching 4,784 feet (1,458 m) above sea level, while the lowest point is at the Atlantic Ocean. Except for some elevated areas in the Blue Ridge, Georgia predominantly experiences a humid subtropical climate. Among the states located entirely east of the Mississippi River, Georgia ranks as the largest in terms of land area.