On this day in 1929, President Herbert Hoover has a phone installed at his desk in the Oval Office of the White House. It took a while to get the line to Hoover’s desk working correctly and the president complained to aides when his son was unable to get through on the Oval Office phone from an outside line. Previously, Hoover had used a phone located in the foyer just outside the office. Telephones and a telephone switchboard had been in use at the White House since 1878, when President Rutherford B. Hayes had the first one installed, but no phone had ever been installed at the president’s desk until Hoover’s administration.
Mariner 10 visits Mercury
The unmanned U.S. space probe Mariner 10, launched by NASA in November 1973, becomes the first spacecraft to visit the planet Mercury, sending back close-up images of a celestial body usually obscured because of its proximity to the sun.Mariner 10 had visited the planet Venus ...read more