The 20th century was an age of war because during that time period there were many and great wars that were faught. Also many people were killed during the wars that occured during the 20th century.
World War II was in the 20th century
World War II took place in the 20th century (1900s)
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World War I began in the 20th century.
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15th 20th
20th, the 1900s.
World war one: 1914-1918 World war two: 1939-1945
20th Century Fox
Not during the 20th century.
they affected the 20th century by having war after war to get all that they needed even to conquer other lands besides their own.