Texas Pennsylvania portalUnited States portalHistory portalNorth America portal This category is for topics specifically related to the decade 1900s in the U.S. state of Pennsylvania. 1850s1860s1870s1880s1890s1900s1910s1920s1930s1940s1950s 15th16th17th18th19th20th21st22nd23rd24th25th Subcategories This category has the following 16 subcategories, out of 16 total. / 1900s disestablishments in Pennsylvania (10 C, 1 P) 1900s establishments in Pennsylvania (10 C, 2 P)0–9 1900 in Pennsylvania (4 C, 1 P) 1901 in Pennsylvania (4 C) 1902 in Pennsylvania (4 C, 1 P) 1903 in Pennsylvania (4 C, 2 P) 1904 in Pennsylvania (4 C, 2 P) 1905 in Pennsylvania (4 C) 1906 in Pennsylvania (4 C) 1907 in Pennsylvania (4 C, 3 P) 1908 in Pennsylvania (4 C, 2 P) 1909 in Pennsylvania (4 C, 2 P)E 1900s Pennsylvania elections (10 C)P 1900s in Philadelphia (10 P) 1900s in Pittsburgh (28 P)S 1900s in sports in Pennsylvania (10 C)