Jul 4 Cornerstone laid for 2nd US mint at Chestnut and Juniper St, Philadelphia, the "Grecian Temple" Jul 4 The first London bus "omnibus", operated by George Shillibeer, begins service between Marylebone Road and Bank Junction 1st U.S. Typographer Jul 23 William Austin Burt patents America's first "typographer" (typewriter) U.S. patent letter signed by President Andrew Jackson 1828 Historical Events by Year 1830