Westward Expansion of the United States

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Westward Expasion

December 7, 1787 - August 21, 1959

The Westward Expasion of the United States of America

Thirteen Colonies

The original and first Thirteen Colonies of the United States

Delaware

December 7, 1787

First state to ratify the US Constitution.

Pennsylvania

December 12, 1787

New Jersey

December 18, 1787

Georgia

January 2, 1788

Connecticut

January 9, 1788

Massachusetts

February 6, 1788

Maryland

April 28, 1788

South Carolina

May 23, 1788

New Hampshire

June 21, 1788

Virginia

June 25, 1788

New York

July 26, 1788

North Carolina

November 21, 1789

Rhode Island

May 29, 1790

Louisiana Purchase

This purchase more than doubled the size of the United States.