A 1971 Supreme Court case approved which method of racial integration for Charlotte, North Carolina, schools?

A 1969 war between Honduras and El Salvador broke out after qualifying matches for which sporting event? A 1970 act of Congress created which agency that sets standards for workplace safety and health? Which 1970s private-eye series starring James Garner was co-created by Stephen J. Cannell? A 1971 New Jersey law made the common meadow type of which flower the state flower? A 1972 David Bowie album chronicled the rise and fall of which glam rock persona and the Spiders from Mars? A December 1972 earthquake destroyed most of downtown in which Nicaraguan capital? A 1972 experiment measured which quantity more precisely at about 186,282 miles per second? Which Ford model name, first sold in 1972, is also the title of a 2008 Clint Eastwood film?