Urbanization By brayden hansen Nov 18, 1844 First Police Force Nov 18, 1853 First Fire Station Period: Nov 15, 1870 to Nov 15, 1920 City Urbanization Nov 17, 1870 Plumbing and Ventilation was invented Nov 19, 1897 Subways Were First Made Nov 18, 1908 Chlorine started being added to water Nov 17, 1913 Model T Production Line started
