Every pivotal moment, all in one place
Before dawn, the ground ripped open and the city burned for three days a disaster that rebuilt San Francisco in steel.
When gold was found near the Yukon, a hundred thousand dreamers braved ice and mountain passes for a chance at fortune.
A glint in a millrace in 1848 drew hundreds of thousands west in the fastest mass migration in American history.
For about three cents an acre, the United States bought a continent's worth of land and set its course to the Pacific.
The U.S. bought a frozen wilderness from Russia for two cents an acre and was widely mocked for buying a 'refrigerator.'
After disease, disaster, and a change of continents, the world's great canal finally linked the Atlantic and Pacific by locks.
After a decade of digging, a man-made waterway joined the Mediterranean and the Red Sea and shrank the world by weeks of sailing.
As North Vietnamese tanks rolled in, the U.S. embassy's rooftop became the iconic image of a superpower's longest war ending in flight.
A police raid on a Greenwich Village bar met resistance and a marginalized community rose up to claim its place in the world.
For 381 days, a community refused to ride the buses and broke segregation through sheer endurance.
A seamstress in Montgomery simply stayed seated and ignited the modern civil rights movement.
Midway through a bloody war, a president declared millions of enslaved people free and changed the meaning of the conflict.
In the shadow of Auschwitz and Hiroshima, the world agreed on a single list of rights every human possesses simply by being human.
Families discovered their backyards sat atop a buried toxic waste dump and a movement for environmental justice was born.
A partial meltdown in Pennsylvania froze the American nuclear dream and rewired how the world feared the atom.
A single tanker ran aground in pristine Alaska, spilling a river of oil that stained the coast for a generation.
An explosion on a deep-sea rig unleashed the largest marine oil spill in history and fouled the Gulf for years.
Live on the radio, the largest airship ever built burst into flame and killed the dream of passenger flight by zeppelin.