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2:14
Martin Luther King, Jr launched the Poor People's Campaign in 1968 to fight poverty.
1:41
A policeman's 1966 lecture on how homosexuality can destroy your life.
2:45
Truman interpreted a North Korean attack as direct aggression from the Soviet Union.
2:46
In 1972, Nixon took a risk and responded to North Vietnamese aggression by bombing Hanoi.
7:08
Historian Michael Robinson talks about science in America in the 19th century.
2:22
Stevens realized that building a sea level canal would doom the project to failure.
9:05
Author Nathaniel Philbrick talks about his approach to his book, In the Heart of the Sea.