Delaware became the first state to ratify the U.S. Constitution.
Pennsylvania became the second state to ratify the Constitution.
New Jersey became the third state to ratify the Constitution.
Georgia became the fourth state to ratify the Constitution.
Connecticut became the fifth state to ratify the Constitution.
Massachusetts became the sixth state to ratify the Constitution.
Maryland became the seventh state to ratify the Constitution.
South Carolina became the eighth state to ratify the Constitution.
New Hampshire became the ninth state, making the Constitution effective.
Virginia became the tenth state to ratify the Constitution.
New York became the eleventh state to ratify the Constitution.
North Carolina became the twelfth state to ratify the Constitution.
Rhode Island became the last original colony to join as the thirteenth state.
Vermont was admitted as the fourteenth state, first outside the original thirteen.
Kentucky was admitted as the fifteenth state from Virginia territory.
Tennessee was admitted as the sixteenth state from the Southwest Territory.
Ohio became the seventeenth state and first from the Northwest Territory.
Louisiana was admitted as the eighteenth state from the Louisiana Purchase.
Indiana became the nineteenth state from the Northwest Territory.
Mississippi was admitted as the twentieth state.
Illinois became the twenty-first state from the Northwest Territory.
Alabama was admitted as the twenty-second state.
Maine was admitted as the twenty-third state, separated from Massachusetts.
Missouri became the twenty-fourth state under the Missouri Compromise.
Arkansas was admitted as the twenty-fifth state.
Michigan became the twenty-sixth state from the Northwest Territory.
Florida was admitted as the twenty-seventh state.
Texas was admitted as the twenty-eighth state after being an independent republic.
Iowa became the twenty-ninth state.
Wisconsin was admitted as the thirtieth state.
California became the thirty-first state following the Gold Rush.
Minnesota was admitted as the thirty-second state.
Oregon became the thirty-third state.
Kansas was admitted as the thirty-fourth state after years of violent conflict.
West Virginia became the thirty-fifth state, separating from Virginia during the Civil War.
Nevada was admitted as the thirty-sixth state during the Civil War.
Nebraska became the thirty-seventh state.
Colorado was admitted as the thirty-eighth state during the Centennial year.
North Dakota became the thirty-ninth state.
South Dakota was admitted as the fortieth state on the same day as North Dakota.
Montana became the forty-first state.
Washington was admitted as the forty-second state.
Idaho became the forty-third state.
Wyoming was admitted as the forty-fourth state.
Utah became the forty-fifth state after decades as a territory.
Oklahoma was admitted as the forty-sixth state from Indian Territory.
New Mexico became the forty-seventh state.
Arizona was admitted as the forty-eighth state, completing the contiguous United States.
Alaska became the forty-ninth state, the first non-contiguous state.
Hawaii was admitted as the fiftieth state, the only island state.