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The Complete Timeline of American History

From first European contact to the present — the events, documents, and turning points that built the United States, in order.
Illustration evoking four centuries of American history

American history is not a single story but a sequence of arguments — about who belongs, who governs, and what the country owes its people. This timeline traces that sequence from the European arrival of the 1490s to the pandemic that closed out the 2010s, stopping at the moments that forced the nation to redefine itself. Each entry below links to a full account; together they form the spine of the American story, era by era.

Read top to bottom and a pattern emerges. Settlement gives way to revolution, revolution to a fragile union, the union to civil war, and the rebuilt republic to industrial power and global reach. Progress and reversal arrive together — a war for independence written by enslavers, a constitution that took eighty years to confront slavery, a century of expansion paid for by the people already living on the land. The dates anchor the events; the connections between them are the real history.

Contact and Colonization (1492–1754)
Age of Exploration and Contact
European arrival after 1492 opened more than a century of conquest, disease, and settlement that remade two continents.
Jamestown
Founded in 1607, the first permanent English settlement survived starvation to plant tobacco, slavery, and representative government in North America.
Mayflower Compact
The 1620 shipboard agreement among the Pilgrims put self-rule on paper a century and a half before independence.
French and Indian War
The North American theater of a global war, ending in 1763, left Britain victorious, broke, and ready to tax its colonies.
Revolution and Founding (1765–1789)
The Boston Tea Party
The 1773 harbor protest against the tea tax pushed Britain and the colonies past the point of reconciliation.
Declaration of Independence
Adopted July 4, 1776, it turned a tax revolt into a war for a new nation founded on a claim of equality.
Battle of Yorktown
The 1781 siege trapped the main British army and effectively ended the Revolutionary War.
U.S. Constitution
Drafted in 1787, it scrapped the weak Articles of Confederation and built the framework that still governs the country.
The Early Republic and Expansion (1803–1848)
Louisiana Purchase
The 1803 purchase from France doubled the size of the United States overnight and set the course westward.
Trail of Tears
The forced removal of Native nations from the Southeast, beginning in 1830, cleared land for cotton at a staggering human cost.
Mexican-American War
The 1846–1848 war of conquest handed the United States the Southwest and reopened the fight over slavery in new territory.
Seneca Falls Convention
The 1848 gathering in New York launched the organized American campaign for women's rights.
Civil War and Reconstruction (1861–1877)
Battle of Gettysburg
The bloodiest battle of the Civil War, fought July 1–3, 1863, turned back the Confederate invasion of the North.
Assassination of Lincoln
Lincoln's murder on April 14, 1865, days after the war ended, left Reconstruction in far less steady hands.
The Gilded Age and Progressive Era (1877–1920)
Wright Brothers' First Flight
The 12-second flight at Kitty Hawk in 1903 opened the age of powered flight from a windswept stretch of sand.
World War I
America's entry in 1917 tipped the European war and announced the country as a global power.
Depression and World War (1929–1945)
Stock Market Crash of 1929
The October 1929 collapse wiped out fortunes and triggered the Great Depression.
Pearl Harbor
The Japanese attack of December 7, 1941, ended American neutrality and brought the country into World War II.
Hiroshima and Nagasaki
The atomic bombings of August 1945 ended the war in the Pacific and opened the nuclear age.
The Cold War and Civil Rights (1945–1991)
Cuban Missile Crisis
Thirteen days in October 1962 brought the United States and Soviet Union closer to nuclear war than ever before or since.
March on Washington
The August 1963 demonstration drew 250,000 people and gave the civil rights movement its defining speech.
Watergate
The 1972–1974 scandal forced a president to resign and reset the public's trust in the office.
Modern America (1991–Present)
September 11 Attacks
The deadliest terrorist attack on American soil, on September 11, 2001, reshaped two decades of foreign and domestic policy.
COVID-19 Pandemic
The 2020–2023 pandemic killed more than a million Americans and upended work, schooling, and public life.

This is the overview. To go deeper into the periods that shaped the country most, follow the American Revolution timeline, the full account of the Civil War, or the complete list of U.S. presidents in order.