Example image of eyePlorer eyePlorer map for '1860': Gregorian calendar Julian calendar Leap year starting on Friday Leap year starting on Sunday Roman numerals January 10 Lawrence, Massachusetts Pemberton Mill Grand Duchy of Tuscany Kingdom of Italy March 22 Army group August Jiangnan Jiangnan Daying March Qing Dynasty April 3 Pony Express Sacramento, California Saint Joseph, Missouri April 4 Palermo 2008 April 9 Au clair de la lune France Phonautograph Sound recording and reproduction Édouard-Léon Scott de Martinville May 1 Meteorite Muskingum County, Ohio New Concord, Ohio Ohio Expedition of the Thousand Genoa Giuseppe Garibaldi May 6 Cauca Colombia Granadine Confederation Magdalena May 8 Simón Bolívar Constitutional Union Party (United States) John Bell (Tennessee politician) May 9 President of the United States May 15