Sentence 1: Point Marsden was discovered by William Marsden on March 21 , 1802 , and named after Matthew Flinders , Secretary of the Admiralty .
Sentence 2: Point Marsden was discovered by William Marsden on 21 March 1802 and named after Matthew Flinders , Second Secretary to the Admiralty .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?