What year did the german u-boots torpedoes dutch merchant ship arendskerk?

The correct answer is: He led the Constitutional Convention because he was respected throughout the nation.

The Philadelphia Convention is also known as the Constitutional Convention took place between May 14 and September 17, 1787, to resolve the problems of the United States government.  

The delegates elected to George Washington to led the convention, the presence of Washington, a national hero respected by all, helped to legitimize the convention. The result of the Convention was the Constitution of the United States of America.