Chicago History

Muckraker journalist Upton Sinclair started a national movement for food safety after the publication of his 1906 novel, The Jungle, although that wasn't his aim. “I aimed at the public's heart, and by accident I hit it in the stomach,” he said. 

Before our clocks fell back and sprung forward, there were dozens of time zones in the United States. Chicago, once a major railroad hub, played a key part in standardizing time across the country.