answers: 1912
context: NCAA: Ohio State joined the Big Ten in 1912; before that they were a member of the Ohio Athletic Conference and won two OAC titles. Ohio State has won a championship in the Big Ten 37 times, second most in the conference and third most conference titles of any school in any conference. § – Conference co-champions Since 2011, Big Ten has moved to divisions to ultimately decide who would play for the conference championship. The divisions were known as Legends and Leaders from 2011 to 2013. In 2014, the divisions were realigned geographically into East and West. Ohio State </s> Missouri Tigers, with the two men's teams squaring off annually in the "Braggin' Rights" game. It has been held in St. Louis since 1980, first at the St. Louis Arena and since 1994 at the Scottrade Center. This rivalry has been carried over into football as "The Arch Rivalry" with games played at the Edward Jones Dome in St. Louis in 2002 and 2003 and four games in 2007 through 2010. Wisconsin has a long-standing in-state basketball rivalry with Marquette. The series has intensified as of late with both teams having made the Final Four in recent years. The schools </s> conference's 12th school, which became effective July 1, 2011. The conference retained the name "Big Ten." This briefly led to the interesting and ironic result of the Big Ten consisting of twelve teams, and the Big 12 consisting of ten teams (with fellow former Big 12 member Colorado's move to the Pac-12 Conference). On September 1, 2010, Delany revealed the conference's football divisional split, but noted that the division names would be announced later. Those division names, as well as the conference's new logo, were made public on December 13, 2010. For their new logo, the conference replaced the "hidden
question: when did ohio state join the big ten