On June 17, 1775, the Charlestown Peninsula was the site of the Battle of Bunker Hill, named for a hill at the northwest end of the peninsula near Charlestown Neck. British troops unloaded at Moulton's Point and much of the battle took place on Breed's Hill, which overlooked the harbor from about 400 yards off the southern end of the peninsula. The town, including its wharves and dockyards, was almost completely destroyed during the battle by the British. The town was not appreciably rebuilt until the end of hostilities but, in 1786, the first bridge across the Charles River connected Boston with Charlestown. An Navy Yard was established in 1800; Charlestown State Prison opened in 1805. The Bunker Hill Monument was erected between 1827 and 1843 using Quincy granite brought to the site by a combination of purpose-built railway and barge. Notable businesses included the Bunker Hill Breweries (1821) and Schrafft's candy company (1861).