1750 – Born in Boston, Mass on the 20th of May.
1770 – He went to France as secretary to Benjamin Franklin.
1785 – He studied military science; returned to the United States and settled in Philadelphia.
1801 – He entered the United States Army as major of the Second Regiment of Artillerists and Engineers on the 16th of February.
1802 – He was the first Superintendent of the United States Military Academy.
1812 – He was promoted through the ranks to colonel, planned and built the inner forts for the defense of New York Harbor and resigned on the 21st of July 31, 1812
1815 – He was the author of several military and philosophical papers; elected to the Fourteenth Congress and served from th 4th of March.
– Died in Philadelphia, Pa on the 16th of May.