Jul 13 John F Loudon discovers tin on East Indian Island of Billiton Jul 23 Treaty of Traverse des Sioux signed by Sioux Indians and US Jul 24 Window tax abolished in Britain Jul 28 Total solar eclipse captured on a daguerreotype photograph Jul 29 Annibale de Gasparis discovers asteroid 15 Eunomia Share On Facebook Share On Twitter 1850 Historical Events by Year 1852