Operation Coronado XI happened in 1968-03.
Operation Coronado II happened on 1967-07-31.
Operation Coronado IX happened on 1967-11-01.
Operation Coronado V happened on 1967-10-07.
The King of Fighters XI happened in 2005.
WrestleMania XI happened on 1995-04-02.
Final Fantasy XI happened in 360.
KSW XI happened on 2009-05-15.
Super Bowl XI happened in 1976.
Xi - alternate reality game - happened in 2009.
Summation of Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi XiXi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi Xi
Operation Rumford happened in 1944.
Operation Mo happened in 1942.