TODAY IN HISTORY
August 20, 1968
The Soviet Union and other Warsaw Pact nations began invading Czechoslovakia to crush the “Prague Spring” liberalization drive.
ON THIS DATE 1862
The New York Tribune published an open letter by editor Horace Greeley calling on President Abraham Lincoln to take more aggressive measures to free the slaves and end the South’s rebellion.
President Lyndon B. Johnson signed the Economic Opportunity Act, a nearly $1 billion anti-poverty measure.
President Donald Trump abruptly canceled an upcoming trip to Denmark, which owns Greenland, after the Danish prime minister dismissed the idea of the United States purchasing the mostly frozen island.