(Definition of harp on (about sth) from the Cambridge Advanced Learners Dictionary & Thesaurus Â© Cambridge University Press).
Battle of Saratoga. In late September and during the first week of October 1777, Gate's American army was positioned between Burgoyne's army and Albany. On October 7, Burgoyne took the offensive. The troops crashed together south of the town of Saratoga, and Burgoyne's army was broken. In mop-up operations 86 percent of Burgoyne's command was captured.
The Battle of Tippecanoe (/ Ë t Éª p i k É Ë n uË / TIP-ee-kÉ-NOO) was fought on November 7, 1811, in what is now Battle Ground, Indiana, between American forces led by Governor William Henry Harrison of the Indiana Territory and Native American warriors associated with the Shawnee leader Tecumseh.