Slavery divides the nation; Abraham Lincoln's election as president is a harbinger of Civil War.
As the Civil War rages, the Confederacy's army proves to be formidable, but it can't match Union industry and resources; the Transcontinental Railroad transforms the heartland and unites the nation; the cowboy becomes an American icon.
The Transcontinental Railroad transforms the heartland and unites the nation; the cowboy becomes an American icon.
Carnegie steel becomes the backbone for the rise of modern cities; skyscrapers and the Statue of Liberty symbolize the American dream for millions of immigrants; oil industry; Henry Ford's cars put Americans on the road.
The discovery of oil triggers a business boom; Henry Ford's cars put Americans on the road; Prohibition.
The stock market crashes; the Great Depression and dust bowl blanket the nation in darkness; President Franklin D. Roosevelt's New Deal signals recovery; the United States emerges from World War II as a global superpower.
The United States emerges from World War II as a global superpower.