How did a test of gold's purity in 500 B.C. lead to the invention of the atomic bomb? James Burke, host of this beloved 1978 TV documentary series, makes this and other beguiling connections between history and science. Combing through 12,000 years of history, this Sherlock Holmes of science finds clues that led to various modern inventions. Burke's droll humor, careful reenactments and stirring use of classical music helped to make this a BBC hit.