■ In 14, the Roman Senate officially confirmed Tiberius as the second emperor of the Roman Empire, succeeding the late Augustus. ■ In 1759, France formally surrendered Quebec to Britain. ■ In 1793, President George Washington laid the cornerstone of the U.S. Capitol. ■ In 1927, the Columbia Phonograph Broadcasting System (later CBS) made its on-air debut with a basic network of 16 radio stations. ■ In 1961, U.N.