Baltimore Ravens, officially established in 1996 as a result of the Browns' relocation, did not play in the Hall of Fame Game until 2018. With the Ravens' participation, all 32 current NFL teams have at least one appearance. Scheduling Prior to the AFL–NFL merger, the Hall of Fame Game was played in August or September, in some cases at the end of the preseason. In 1970, it was moved to the beginning of the preseason. Prior to , it was not uncommon for the game to be played in July. Since 2001, when the league permanently moved the start of the season to the weekend after Labor Day, the game has always been played in early August. In 2002, the Hall of Fame enshrinement ceremony was moved from the steps of the museum to the football stadium. This created a tight schedule between the ceremony and the game. The game was originally scheduled between the Rams and the Bears, but the game was canceled due to an ongoing labor dispute that had disrupted nearly all league activity during the 2011 offseason. The two clubs had set a deadline of July 22 to ratify a resolution in enough time to prepare for the game. The league and players did not ratify the agreement until July 25, forcing cancellation of the game. The edition, which was scheduled to be played between the Packers and the Colts, was canceled at the last minute due to unsafe playing conditions. Mike Silver of NFL.com reported that on the morning of game day, it was discovered the logos at midfield and the end zones had been painted using paint which was not intended for use on the newly-installed synthetic FieldTurf. Subsequently, the paint had not fully dried, and officials heated the field to speed up the drying process, causing its rubber infill to melt; the affected areas were described as being slick and "like cement," making it impossible to get decent footing. Stadium officials attempted to address this by applying paint thinner to the turf, but a Packers employee noticed a label warning that this substance could result in burns when exposed to skin, and alerted them to the discovery. In deciding to cancel the game, the league and the Players Association cited safety concerns. Both teams were told at 6:40 p.m. EDT, eighty minutes before kickoff, that the game was going to be canceled. However,