The Ontario Junior Hockey League is a Junior A ice hockey league under the supervision of the Ontario Hockey Association and the Canadian Junior Hockey League. The league dates back to 1954 as the Central Junior B Hockey League. In 1993, the Central Junior B Hockey League was promoted to the Junior A level and renamed the Ontario Provincial Junior A Hockey League. In 2009, the league was dissolved by the Ontario Hockey Association and split into two leagues: the Central Canadian Hockey League and the Ontario Junior A Hockey League. By early 2010, both sides had gotten over their differences and merged to reform the Ontario Junior Hockey League was well as agreeing to a retraction by 5-teams.