Historical Events in September 1846

Sep 10 Elias Howe takes out a US patent for a lockstitch sewing machine

Sep 18 Elizabeth Barrett and Robert Browning exchange their last letters before they move to Italy

Sep 23 Johann Gottfried Galle & Heinrich d'Arrest find Neptune
Sep 25 US troops under General Zachery Taylor occupy Monterey, Mexico, during Mexican–American War
Sep 30 Anesthetic ether used for 1st time by American dentist Dr William Morton who extracts a tooth