In 1921, John Augustus Larson, a medical student and police officer in Berkeley, California invented a machine to help detectives determine if someone was telling the truth – or lying. He called it – the Polygraph.
Watch Next
- The Great American Songbook
- Election of 1824: When the House Chose
- Caretakers and Confidants: Presidential Valets
- The Election of 1800: Presidential Tie
- Who Founded the Republican Party?
- Who Founded the Democratic Party?
- What is the Magna Carta?
- American Mottos on Symbols
- The Showdown: MacArthur v. Truman
- Who Was Benjamin Franklin?