September 22nd marks the anniversary of a storm. 209 years ago today, the wind was building over the sea off Boston while the skies grew dark with clouds. The next day, the strongest hurricane in generations slammed into the New England coast, causing devastation on Boston Harbor, in city streets, and in fields and forests all around the region. The storm is remembered as the Great September Gale, and it had wide-ranging effects, causing everything from a collapse in the local glass industry to a construction boom to an acceleration in westward migration from Boston and New England.