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