|Date|Opponent#|Rank#|Site|Result|Attendance|
|---|---|---|---|---|---|
|September 10|Miami (FL)*|#5|Ohio Stadium • Columbus, OH|W 10-0|86,287|
|September 17|Minnesota|#6|Ohio Stadium • Columbus, OH|W 38-7|87,799|
|September 24|#3 Oklahoma*|#4|Ohio Stadium • Columbus, OH|L 28-29|88,119|
|October 1|at SMU*|#6|Cotton Bowl • Dallas, TX|W 35-7|51,970|
|October 8|Purdue|#4|Ohio Stadium • Columbus, OH|W 46-0|87,707|
|October 15|at Iowa|#5|Kinnick Stadium • Iowa City, IA|W 27-6|60,070|
|October 22|at Northwestern|#4|Dyche Stadium • Evanston, IL|W 35-15|29,563|
|October 29|Wisconsin|#3|Ohio Stadium • Columbus, OH|W 42-0|87,837|
|November 5|at Illinois|#4|Memorial Stadium • Champaign, IL|W 35-0|66,973|
|November 12|Indiana|#4|Ohio Stadium • Columbus, OH|W 35-7|87,786|
|November 19|at #5 Michigan|#4|Michigan Stadium • Ann Arbor, MI|L 6-14|106,024|
|January 2|vs. #3 Alabama*|#9|Louisiana Superdome • New Orleans, LA (Sugar Bowl)|L 6-35|76,811|

Question: how many dates are on the chart
Answer: 12