text: After it tried to avoid paying full customs on a shipment of Madeira wine, the HMS Liberty was towed out of this city's harbor.
full_question: After it tried to avoid paying full customs on a shipment of Madeira wine, the HMS Liberty was towed out of this city's harbor. This city was defended by a fort on Castle Island. An event in this city was depicted in a propaganda engraving that shows a small dog beneath a cloud of smoke. A "noble train of artillery" that brought cannons to this city was planned by Henry Knox. After a crowd gathered on this city's King Street to throw snowballs at some soldiers, Thomas Preston fired upon a group that included Crispus Attucks. For 10 points, name this city, the site of a 1770 massacre that preceded the American Revolution.  
first_sentence: After it tried to avoid paying full customs on a shipment of Madeira wine, the HMS Liberty was towed out of this city's harbor.
raw_answer: Boston [or the Boston massacre] 