Declaration of Independence

Articles of Confederation, approved by congress 1777, ratified by states 1781

United States Constitution, approved by congress 1787, ninth state to ratify 1788, final state signed 1790

Residence Act, established a site somewhere on the Potomac for the capitol

The City of Washington, District of Columbia, becomes the official name of the Capitol

The corner stone of the White House is layed

The corner stone of the Capitol Building is layer

The Treasury Building is built

Congress moves from Philadelphia to DC

Old Patent Office is built

Construction is started on The Washington Monument

Botanical Gardens

Smithsonian Castle

Arlington Cemetery

Old Executive Office Building

Peace / Navy Monument

Washington Monument is finished

Garfield Monument

National Zoo

Library of Congress new building Opens

National Cathedral corner stone

Natural History Museum

Lincoln Monument opens

Ulysses S Grant Monument

D.C. World War I Monument

Supreme Court moves to new building

National Archives moves to new location

National Art Gallery

Jefferson Monument

Marine Corps War Memorial (Statue of Iwo Jima flag raising)

Theodore Roosevelt Island

Air and Space Museum

Albert Einstein Monument

Vietnam Veterans Monument

Korean Veterans Monument

Franklin D Roosevelt Monument opens

World War II Monument

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