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Students start practicing duck-and-cover drills

Cold War — early 1950s

William Penn founds Pennsylvania

Colonial — 1681

Continental Congress declares independence

Revolution & Founding — 1776

Lincoln signs the Emancipation Proclamation

Expansion & Division — 1863

Moon landing

Cold War — 1969

Louisiana Purchase

Expansion & Division — 1803

Prohibition (18th Amendment)

Roaring Twenties — 1920

Captains of industry build monopolies; immigrants live in tenements

Gilded Age — late 1800s

D-Day / Allied invasion of Normandy

World Wars — 1944

Constitutional Convention creates the Constitution

Revolution & Founding — 1787

Reconstruction

Expansion & Division — 1865–1877

Jamestown founded by the Virginia Company

Colonial — 1607

Cuban Missile Crisis

Cold War — 1962

Martin Luther King Jr.'s “I Have a Dream” speech

Civil Rights Era — 1963

Vietnam War

Cold War — 1955–1975

John F. Kennedy is assassinated

Cold War — 1963

Fall of the Berlin Wall

Cold War — 1989

Founding of Jamestown

1607

Declaration of Independence

1776

Constitutional Convention

1787

Civil War

1861-1865

D-Day

1944