Less than one year after the United States tested its first hydrogen bomb, the Soviets detonate a 400-kiloton device in Kazakhstan. The explosive power was 30 times that of the U.S. atomic bomb dropped on Hiroshima, and the mushroom cloud produced by it stretched five miles into the sky. Known as the "Layer Cake," the bomb was fueled by layers of uranium and lithium deuteride, a hydrogen isotope. The Soviet bomb was smaller and more portable than the American hydrogen bomb, so its development once again upped the ante in the dangerous nuclear arms race between the Cold War superpowers.
Also on This Day
- Lead Story
- Skeleton of Tyrannosaurus rex discovered, 1990
- American Revolution
- Washington anticipates British strategy, 1776
- Automotive
- "Tucker: The Man & His Dream" debuts, 1988
- Civil War
- John Hunt Morgan captures a Federal garrison at Gallatin, 1862
- Cold War
- East Germany begins construction of the Berlin Wall, 1961
- Crime
- Great Train robber escapes from prison, 1964
- Disaster
- Russian sub sinks with 118 onboard, 2000
- General Interest
- King Philip's War ends, 1676
- Armistice ends the Spanish-American War, 1898
- Soviets test "Layer-Cake" bomb, 1953
- Nicklaus sets title record, 1973
- JAL air crash, 1985
- Hollywood
- James Bond creator Ian Fleming dies, 1964
- Literary
- English poet laureate Robert Southey is born, 1774
- Music
- The Wizard of Oz movie musical premieres in Oconomowoc, Wisconsin, 1939
- Old West
- Fur trader Manuel Lisa dies, 1820
- Sports
- Rising NFL star paralyzed by hit, 1978
- Vietnam War
- Henry Cabot Lodge sworn in as Ambassador to Vietnam, 1965
- VC launch new offensive, 1969
- World War I
- British Parliament passes Defense of the Realm Act , 1914
- World War II
- Hitler institutes the Mother's Cross, 1938
- Roosevelt and Churchill confer, map out short- and long-term goals, 1941
Soviets test "Layer-Cake" bomb
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This Week in History, Aug 12 - Aug 18
- Aug 12, 1676
- King Philip's War ends
- Aug 12, 1898
- Armistice ends the Spanish-American War
- Aug 12, 1953
- Soviets test "Layer-Cake" bomb
- Aug 12, 1973
- Nicklaus sets title record
- Aug 12, 1985
- JAL air crash
- Aug 13, 1521
- Aztec capital falls to Cortés
- Aug 13, 1899
- Hitchcock born
- Aug 13, 1926
- Fidel Castro born
- Aug 14, 1784
- Russians settle Alaska
- Aug 14, 1900
- Peking relieved by multinational force
- Aug 15, 1057
- Malcolm slays Macbeth
- Aug 15, 1914
- Panama Canal open to traffic
- Aug 15, 1947
- India and Pakistan win independence
- Aug 15, 1961
- Berlin Wall built
- Aug 16, 1812
- Detroit surrenders without a fight
- Aug 16, 1948
- Babe Ruth dies
- Aug 16, 1972
- Moroccan king survives attack by own air force
- Aug 16, 1977
- Elvis Presley dies
- Aug 17, 1943
- Patton wins race to Messina
- Aug 17, 1978
- Balloon crosses the Atlantic
- Aug 17, 1987
- Hitler's last living henchman dies
- Aug 17, 1999
- Deadly earthquake strikes Turkey
- Aug 18, 1227
- Genghis Khan dies
- Aug 18, 1590
- Roanoke Colony deserted
- Aug 18, 1920
- Woman suffrage amendment ratified
- Aug 18, 1963
- Meredith graduates from Ole Miss
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