During the Siege of Boston on August 1, 1775, a tall liberty pole was erected on Prospect Hill, a fortified high-ground overlooking the road to British-occupied Boston.Journal kept by continental soldier Lieutenant Paul Lunt, May-December 1775 "raised the mast that came out of the schnoner that was burnt at Chelsea, for to hoist our flag upon, in the fort upon Prospect Hill". Both the "Appeal to Heaven" Pine Tree Flag and Grand Union Flag (aka Continental Colors) are reported to have flown on Prospect Hill.The Writings of George Washington from the Original Manuscript Sources 1745-1799, Vol. 4: To Joseph Reed Cambridge, January 4, 1776. Paul Lunt's Diary, Lieutenant Paul Lunt, May–December 1775, Tuesday, July 18, 1775, "Our standard was presented in the midst of the regiments with this inscription upon it, "Appeal to Heaven." The 76 foot long liberty pole was originally a ship's mast that had been recently capturedRevolutionary War Soldier's Journal/Diary in the Longfellow House Collections, Moses Sleeper, Tuesday, August 1st, 1775 "Raised the mast that Came out of the Schooner that was burnt at Chelsa" . from the British armed schooner HMS Diana (1775), in the aftermath of the Battle of Chelsea Creek on May 27 and 28, 1775.
