Sentence 1: In 1903 she spoke at the annual conference of the British Labour Party ( later Labour Representation Committee ) and was the first woman to do so .
Sentence 2: In 1903 she spoke at the annual conference of the Labour Representation Committee ( later the British Labour Party ) , and was the first woman to do so .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?