Eras
Georgian era: 1714 to 1830 — the period of the reigns of George I, George II, George III and George IV
Victorian era: 1837 to 1901 — the period of Queen Victoria’s reign
Edwardian era: 1901 to 1910 — the period covering the reign of King Edward VII
Ages
The Gilded Age: 1873 to 1893 — Term coined by Mark Twain and Charles Dudley Warner in their novel of the same name about the post–Civil War era
Wars
Civil War: 1861 to 1865
World War I: 1914 to 1918
World War II: 1939 to 1945 (though the US joined in 1941)