Complex sentence: He was a delegate to the Continental Congress from 1785 to 1787, and was elected as a Federalist to the 1st and 2nd United States Congresses, serving from March 4,1789, to March 3,1793.
Split into simpler sentences: He was a delegate to the Continental Congress from 1785 to 1787. Laurance was elected as a Federalist to the 1st and 2nd United States Congresses, serving from March 4,1789, to March 3,1793.