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Galveston Hurricane
left an estimated 6,000 to 8,000 dead -
World War I
lasted from 1914 to 1918, but the United States did not enter until 1917 -
The Great Depression
stock market crashes and produces the Great Depression on October 29th, 1929 -
World War II
global war that lasted from 1939 to 1945 -
United Nations
the United Nations was established on October 24th, 1945 as an organization that aims to maintain international peace and security -
Central Intelligence Agency (CIA)
the CIA was established on September 18th, 1947, originally tasked with gathering, processing, and analyzing national security information from around the world -
Vietnam War
the Vietnam War lasted from 1950 to 1975 and was a long, costly and divisive conflict that pitted the communist government of North Vietnam against South Vietnam and its principal ally, the United States -
Martin Luther King Jr.'s "I Have a Dream"
On August 28, 1963, some 100 years after President Abraham Lincoln signed the Emancipation Proclamation freeing the slaves, a young man named Martin Luther King climbed the marble steps of the Lincoln Memorial in Washington, D.C. to describe his vision of America. -
The Space Shuttle "Challenger" disaster
on January 28, 1986, when the Space Shuttle Challenger exploded and broke apart 73 seconds into its flight, killing all seven crew members aboard -
OKC Bombing
the Oklahoma City bombing was a domestic terrorist truck bombing of the Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma, United States, on Wednesday, April 19, 1995
