1913 Event 1st U.S. law regulating the shooting of migratory birds passed 1842 Event 1st U.S. child labor law regulating working hours passed (Mass) 1804 Event 12th amendment to U.S. constitution, regulating judicial power 1799 Event 1st U.S. law regulating insurance passed, by Massachusetts 1760 Event New York passes 1st effective law regulating practice of medicine
