Who Was in Power
America’s story is yours to explore.
Scroll the timeline, open an event, and discover the people and turning points that shaped the United States.
Scroll the timeline, open an event, and discover the people and turning points that shaped the United States.
Explore the presidents of the United States, their terms in office, party affiliations, and succession.
A Journey Through the Ages
The history of the United States begins long before the nation itself, with the diverse Indigenous peoples who shaped North America for thousands of years.
European colonization, forced migration, and Atlantic slavery transformed the continent. Thirteen British colonies later declared independence and built a constitutional republic.
Expansion brought enormous growth alongside Indigenous dispossession and deepening conflict over slavery, culminating in Civil War and emancipation.
Industrialization, immigration, reform, depression, and two world wars remade American life and the nation’s place in the world.
Modern America continues to be shaped by civil-rights movements, global power, migration, technology, and an unfinished debate over the meaning of freedom and democracy.
Before 1492
Native nations built distinct cultures, trade networks, governments, and cities across the continent.
Long before the United States existed, Indigenous peoples shaped the continent through agriculture, diplomacy, commerce, migration, and conflict. Their histories are foundational to the American story and continue in sovereign tribal nations today.
1492–1763
Colonization created new settlements and economies while bringing epidemic disease, warfare, dispossession, and slavery.
European colonization unfolded within an already populated continent. Competing empires, Native nations, settlers, and enslaved Africans created a contested Atlantic world whose institutions and inequalities deeply shaped the future United States.
1763–1824
Revolutionary ideals produced a new nation, even as citizenship and freedom remained sharply limited.
War with Britain transformed colonies into an independent republic. The Constitution created an enduring federal framework, but the new political order protected slavery and excluded most people from full participation.
1824–1877
Expansion and sectional crisis culminated in civil war, emancipation, and a contested reconstruction.
Westward expansion displaced Native peoples and repeatedly reopened the question of slavery. Civil War preserved the Union and destroyed legal slavery; Reconstruction briefly expanded biracial democracy before violent resistance and political retreat narrowed its gains.
1877–1945
The United States became an urban industrial power and emerged from two world wars with unprecedented influence.
Railroads, corporations, immigration, and urbanization remade American life. Reform movements challenged concentrated power and exclusion, while depression expanded the federal role. Victory in World War II left the United States a global superpower.
1945–Present
Postwar prosperity and global leadership unfolded alongside movements demanding fuller equality and democracy.
The modern United States has been shaped by the Cold War, civil-rights struggles, immigration, globalization, terrorism, digital technology, and intense debates over the meaning of citizenship and democratic government.
21st President of the United States
Succeeded Garfield and signed the Pendleton Civil Service Reform Act.
United States history has left a complex constitutional, cultural, social, and global legacy. Its ideals have inspired generations, while the gap between those ideals and lived reality continues to drive change.
American music, film, literature, technology, and political ideas have circulated worldwide, creating influence as well as debate about power and cultural exchange.
The Constitution created a durable federal system built around divided powers, representative government, and amendment. Its interpretation remains a central arena of American public life.
Abolition, women’s suffrage, labor organizing, civil rights, disability rights, and other movements repeatedly expanded who could claim the nation’s promises of liberty and equality.
The legacies of Indigenous dispossession, slavery, immigration, expansion, war, and reform still shape institutions and communities. American history remains a living argument about the country it should become.
