What was one thing the americans did to defeat yorktown

After three weeks of non-stop bombardment, both day and night, from cannon and artillery, Cornwallis surrendered to Washington in the field at Yorktown on October 17, 1781, effectively ending the War for Independence.

Explanation:

cause of the cannon

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.