19th century Shortly after the Revolutionary War, Groton started to re-establish its commercial activities. Shipbuilders began to build again; Victory was launched in 1784, Success was launched in 1785, and five sloops were built in 1787, along with the 164-ton Nancy. Shipbuilders along the Mystic River were the busiest. These ships went on trips to Florida, and the resulting profits made Mystic the most thriving part of the town. Between 1784 and 1800, 32 vessels were built in Groton. 28 more were built from 1800 to 1807, when business came to a sudden stop with the Embargo Act. In June 1812, the United States declared war on Great Britain. Most of the United States' small navy was landlocked in the Thames River. This frightened the people in Groton for fear that there would be a repeat of the Groton Heights massacre of 1781, and many residents fled inland for safety. Those that did not flee demanded protection and militia. These residents built a fort on a hill of rock that held one cannon and maintained constant guard. The fort was named Fort Rachel, after a woman that lived nearby. The British never attacked but created a blockade that ruined Groton's trade. Some men from Mystic lured a British barge to Groton Long Point on August 12, 1814, the day after the British attacked Stonington, gaining themselves 2,600 dollars in prize money. The men in Mystic captured a sloop, the cargo of which they later sold for 6,000 dollars. Seventeen Mystic men also tried out a new weapon called the spar torpedo to rid themselves of the British blockade. They brought the torpedo from New York; it was long, in diameter, and had a crossbar at one end. The men failed to sink . On their first attempt, the torpedo went into the water; on the second attempt, the explosive caught on Ramillies cable and exploded. All the men made it safely to the shore while being fired at by the British ship and the American sentries at Eastern Point. Groton received word that the war was over on February 21, 1815. The land-locked frigates left the Thames in April, leaving Groton to resume its marine pursuits. After the War of 1812, whaling became a very important part of Groton's economy, but most of the expeditions were still for seal skins. Before 1820, sealers went to Antarctica, where their ships would