Example image of eyePlorer eyePlorer map for '1848': Gregorian calendar Julian calendar Leap year starting on Saturday Leap year starting on Thursday Roman numerals Revolutions of 1848 African people January 3 Joseph Jenkins Roberts Liberia President of Liberia House of Bourbon January 12 Kingdom of the Two Sicilies Sicilian revolution of independence of 1848 California Gold Rush Coloma, California Gold James W. Marshall January 24 Sutter's Mill January 31 John C. Frémont February 2 Mexican–American War Southwestern United States Treaty of Guadalupe Hidalgo Hungarian Revolution of 1848 March 15 First Schleswig War March 24 Chartism Feargus O'Connor Kennington Park London Parliament England Great Yarmouth Chamber of Deputies France May 15 Radicalism (historical) Frankfurt am Main Frankfurt Parliament Germany May 18 National Assembly May 19 Mexico May 29