Complex sentence: His father, John Haviland, was born in Somerset, England, and practiced as an architect and an engineer; in Russia, John Haviland met John Quincy Adams, who encouraged him to come to the United States--which he did in 1816.
Split into simpler sentences: His father, John Haviland, was born in Somerset England and practiced as an architect and an engineer. In Russia, John Haviland met John Quincy Adams who encouraged him to come to the United States--which he did in 1816.