On September 4, 1951, President Harry S. Truman’s opening speech before a conference in San Francisco is broadcast across the nation, marking the first time a television program was broadcast from coast to coast. The speech focused on Truman’s acceptance of a treaty that officially ended America’s post-World War II occupation of Japan.
The broadcast, via then-state-of-the-art microwave technology, was picked up by 87 stations in 47 cities, according to CBS. In his remarks, Truman lauded the treaty as one that would help “build a world in which the children of all nations can live together in peace.” As communism was threatening to spread throughout Pacific Rim nations such as Korea and Vietnam, the U.S. recognized the need to create an ally in a strong, democratic Japan.