Kenneth Arnold UFO sighting

The Kenneth Arnold UFO sighting occurred on June 24, 1947, when private pilot Kenneth Arnold spotted a string of nine, shiny unidentified flying objects flying past Mount Rainier at then unheard of supersonic speeds that Arnold clocked at a minimum of 1,200 miles an hour (1,932 km/hr). This was the first post-War sighting in the United States that garnered nationwide news coverage and is credited with being the first of the modern era of UFO sightings, including numerous reported sightings over the next two to three weeks. Arnold's description of the objects also led to the press quickly coining the terms flying saucer and flying disc as popular descriptive terms for UFOs.

• http://en.wikipedia.org/wiki/Kenneth Arnold UFO sighting