Sentence 1: About 1838 Stephenson returned to Manchester and established himself as an historical and landscape engraver in Ridgefield , and then in a studio in St. Ann Street .
Sentence 2: Around 1838 , Stephenson returned to Manchester and established himself as a historical and landscape engraver in Ridgefield and then in a studio in St. Ann Street .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?