Complex sentence: John Doughty was born in New York City on 25 July 1754 he graduated from King's College (Columbia University) in 1770 and entered military service through New Jersey state channels in January 1776.
Split into simpler sentences: John Doughty was born in New York City on 25 July 1754. He graduated from King's College (Columbia University) in 1770 and entered military service through New Jersey state channels in January 1776.