Mar 31 Colonel John W Geary arrives as first postmaster of San Francisco
Mar 03 Territory of Minnesota is organized
Mar 27 Joseph Couch patents steam-powered percussion rock drill
Mar 03 US Department of the Interior established by Congress
Mar 12 The first gold seekers arrive in Nicaragua en route to California
Mar 05 Zachary Taylor is sworn in as US president.
Mar 03 Gold Coinage Act authorizes $20 Double Eagle gold coin
Mar 28 Dutch princess Marianne & Prince Albert of Prussia separate
Mar 10 Abraham Lincoln applies for a patent; only US President to do so
Mar 23 Battle of Novara (King Charles Albert vs Italian republic)
Mar 29 Britain formally annexes the Punjab after the defeat of the Sikhs in India
Aug 09 Hungarian Republic crushed by Austria & Russia
Sep 01 California Constitutional Convention held in Monterey
Sep 10 Edwin Booth, later to assassinate president Abraham Lincoln, makes his acting debut.
Sep 19 First commercial laundry established, in Oakland, California
Sep 29 First passenger train service to Peekskill NY (New Haven Railroad)
Sep 03 Calif State Constitutional Convention convenes in Monterey
Sep 13 The first US prize fight fatality (Tom McCoy)
Feb 04 University of Wisconsin begins in 1 room with 20 students
Feb 18 First regular steamboat service to San Francisco CA starts gold rush prospectors from east coast
Feb 09 Roman Republic declared
Feb 28 The first gold-seekers arrived in San Francisco, aboard the ship California.
Feb 18 First regular steamboat service to San Francisco CA starts: gold rush prospectors from east coast
Apr 12 A De Gasparis discovers asteroid #10 Hygiea
Apr 16 M DeGasparis discovers the 10th asteroid, Hygeia [or 0412]






