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Patrick Henry (1736-1799) was a Virginian lawyer and politician who played a vital role in the American Revolution (c. 1765-1789). Known for his brilliant oration, including the famous Give Me Liberty or Give Me Death speech, Henry served...

This text is part of an article series on the Delian League. The modern term Delian League refers to the primarily maritime συμμᾰχία or symmachy (offensive-defensive alliance) among various Greek poleis, which emerged after the second...

View full lesson: http://ed.ted.com/lessons/how-we-conquered-the-deadly-smallpox-virus-simona-zompi For 10,000 years, humanity suffered from the scourge of smallpox. The virus killed almost a third of its victims within two weeks and left...

A 1943 photograph of an 88mm anti-aircraft gun used by Germany during the Second World War (1939-45). These guns were usually placed in batteries of six or eight guns.(German Federal Archives)

Front page of the "Address to the National Assembly", an anti-slavery pamphlet written by the French abolitionist group Société des amis des noirs ("Society of the Friends of the Blacks") in 1790.

A 1942 photograph of one of the anti-aircraft gun installations which protected Berlin during the Second World War. (German Federal Archives)

Britain's integrated air defence system in the Second World War (1939-45), known as the Dowding System after the air chief marshal of that name, included code-breakers, radar stations, observers, searchlights, barrage balloons, anti-aircraft...

Johann Eck (l. 1486-1543) was a Catholic theologian and writer best known for his disputations with Martin Luther (l. 1483-1546) beginning in 1517 and continuing until his death in 1543. Eck maintained the position that, if anyone could determine...

Apocalypse (Greek: apokalypsis, an "unveiling of secrets") is not an event, but a text that contains prophesies concerning God’s future intervention, and apocalypticism is a reference for attitudes and worldviews in biblical and non-canonical...

The bombing of Berlin, aka the Berlin Air Offensive or Battle of Berlin (Air), was a sustained bombing campaign on the German capital by the British Royal Air Force and United States Air Force from November 1943 until March 1944. The objective...