Whoever doesn't know how big this rivalry is..it's the greatest of all time..it even was voted by ESPN as the greatest of all time here's why they say it is..
When Ohio Stadium opened in 1922, Michigan spoiled the party with a 22-0 victory. The rivalry was heated in the early days as both have been long-time college football powers. But it got even hotter in 1969, when Bo Schembechler took over as Michigan's coach and upset Woody Hayes' No. 1-ranked, undefeated Buckeyes. Four times in the next six years, both teams were ranked in the top five when they met. In 1970 and 1973, both were undefeated (they tied 10-10 in '73). From 1970 through 1975, Michigan entered without a loss every year. The Wolverines won just once. Ohio State was 9-0-1 in 1993, 11-0 in 1995 and 10-0 in 1996. The Buckeyes lost each time. That is rivalry.
