Berlin. This area was a center of protest during the Whiskey Rebellion. A riot occurred at the Berlin schoolhouse in June 1794. In September, according to local historians, Robert Philson raised a liberty pole at his log store on the square; he advised citizens to oppose U.S. laws. After federal troops arrived here in October, Gov. Thomas Mifflin had his headquarters in Dr. Christian Boerstler's house located on this site.