Norwich merchants were shipping goods directly from England, but the Stamp Act of 1764 forced Norwich to become more self-sufficient. Large mills and factories sprang up at the falls on the rivers which traverse the town, the largest of which was the Ponemah Mill in the Taftville neighborhood. The ship captains of Norwich and New London were skillful at avoiding Imperial taxation during peacetime and were later just as successful eluding warships during the American Revolution. Norwich supported the cause for independence by supplying soldiers, ships, and munitions, and it was also a center of activity for the Sons of Liberty.