Sentence 1: He fought Wyatt Earp in a bout refereed by a young 21-year-old Mike Donovan on July 4 , 1868 or 1869 in Cheyenne , Wyoming .
Sentence 2: He fought Wyatt Earp in a battle led by a young 21-year-old Mike Donovan on 4 July 1868 or 1869 in Cheyenne , Wyoming .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?