state history

    In 1900, the American baseball league formed in Philadelphia. In 1901, the first escalator was built in Philadelphia.In 1904, a coal mine exsplosion in Cheswick entombed 179 coal miners. 1908, Mirianna coal mine exploded killing 154.1909, the Pittsburgh Pirates won the World series.In 1911, the Philadelphia Athletics won the World Series.

   In 1918, Oakdale had a chemical factory explosion killing 200 and 11,000 died by influenza in Philadelphia.In 1927, the first car armored robbery happened in  Pittsburgh.In 1960, Pittsburgh Pirates won the world series.In 1975, Pittsburgh Steelers won the super bowl.In 1979, Pittsburgh Steelers won the super bowl.

   In 1995, 23 rare gorillas were killed in a fire at Philadelphia zoo. In 1999, Pennsylvania first in North America suffer from plum pox virus.In 2004, slot machines authorized. In 2005, Philadelphia won there first NHL game with a shut out.