On this day in 1878, Alexander Graham Bell, the Scottish-born American inventor of the telephone, gave a demonstration of his new invention to Queen Victoria.
On this day in 1955, the Republic of China’s Legislature ratified the Sino-American Mutual Defense Treaty.
On this day in 1973, Elvis Presley's concert Aloha from Hawaii was broadcast live via satellite. The concert set the record as the most watched broadcast by an individual entertainer in television history.