Answer:Stimulated by severe economic troubles, which produced radical political movements such as Shays’s Rebellion, and urged on by a demand for a stronger central government, the convention met in the Pennsylvania State House in Philadelphia (May 25–September 17, 1787), ostensibly to amend the Articles of Confederation.
Blockades blocked the south from getting any supplies or weapons. They were surrounded and could not keep a fair fight. Lee knew this, thus leading to the surrender at Appomattox Courthouse.