1755
Disaster
Great Lisbon Earthquake
A massive earthquake, estimated at magnitude 8.5-9.0, devastated Lisbon, Portugal, followed by a tsunami and fires. The disaster killed up to 50,000 people and profoundly influenced Enlightenment philosophy.
On This Day in History
1952
War & Conflict
First Hydrogen Bomb Tested
The United States detonated the first thermonuclear device, codenamed 'Ivy Mike,' at Enewetak Atoll in the Pacific. The 10.4-megaton blast vaporized an entire island and escalated the nuclear arms race.
1512
Culture
Sistine Chapel Ceiling Unveiled
Michelangelo's magnificent ceiling frescoes in the Sistine Chapel were first shown to the public. The breathtaking work, painted over four years, became one of the greatest achievements in Western art.
1993
Politics
European Union Created
The Maastricht Treaty took effect, creating the European Union from the European Community. The treaty established common citizenship, paved the way for the euro currency, and deepened European integration.
1950
Politics
Assassination Attempt on Truman
Two Puerto Rican nationalists attempted to storm Blair House to assassinate President Truman. One assailant and one Secret Service officer were killed in the gun battle.
835
Religion
All Saints' Day Established
Pope Gregory IV officially established November 1 as All Saints' Day across the Western Church. The holy day contributed to the development of Halloween traditions the night before.
1963
Politics
South Vietnamese Coup
South Vietnamese military officers overthrew and killed President Ngo Dinh Diem with tacit US approval. The coup plunged South Vietnam into political instability and deepened American involvement in the war.