Complex sentence: Mattocks was born in Hartford, Connecticut on March 4,1777; moved with his parents to Tinmouth, Vermont, in 1778; pursued an academic course, and studied law in Middlebury and Fairfield, then was admitted to the bar in 1797.
Split into simpler sentences: Mattocks was born in Hartford, Connecticut on March 4,1777. John Mattocks pursued an academic course, studied law in Middlebury, Vermont and Fairfield, Connecticut, and was admitted to the bar in 1797.