In December 1981 an estimated 35 million watched a live satellite transmission of a Rod Stewart concert at the Los Angeles Forum; this was the first broadcast of its kind for how many years?
A "land run" into which current state of the USA began at noon on 22 April 1889, when an estimated 50,000 people lined up to race to claim 160 acre (0.65 km2) pieces of the available 2 million acres (8,000 km²)?