the All-Ireland Championship has been running continuously since 1887, with the final running since 1889 (the 1888 competition was played but no final was held due to the Invasion). The competition continued even in spite of the effects on the country of the Civil War and the Second World War (the National Hurling League was not held during the latter). In 1941, the All-Ireland Championship was disrupted by an outbreak of foot-and-mouth disease. The duration of certain championship matches increased from 60 to 80 minutes during the 1970s. They were settled at 70 minutes after five seasons of this in 1975. This applied only to the provincial finals, All-Ireland semi-finals and finals. In the mid-1990s the Gaelic Athletic Association looked at developing a new system whereby a defeat in the championship for certain teams would not mean an immediate exit from the Championship. In the 1997 championship the first major change in format arrived when the 'back-door system' was introduced. This new structure allowed the defeated Munster and Leinster finalists another chance to regain a place in the All-Ireland semi-finals. Tipperary and Kilkenny were the first two teams to benefit from the new system when they defeated Down and Galway respectively in the quarter-finals. The All-Ireland final in the first year of this new experiment was a replay of the Munster final with Clare defeating Tipperary. The first team to win the All-Ireland through the 'back-door' was Offaly in 1998, winning a replay of the Leinster final by beating Kilkenny 2–16 to 1–13. The new "back-door system" proved successful and was expanded over the following years. The 2005 Championship saw even bigger changes in the "back-door" or qualifier system. The Munster and Leinster champions and defeated finalists automatically qualified for the new quarter-final stages, while two groups of four other teams played in a league format to fill the vacant four places in the quarter-finals. Many criticised the structure for not being a real championship at all, for degrading the Munster and Leinster championships and for penalising the strongest teams. 2008 brought a change to the competition format, whereby the team that won the Leinster and Munster championships advanced to the All-Ireland semi-finals, and the losers of the provincial finals advanced to two quarter-finals. A series of knockout qualifiers for the remaining teams decided which other two teams would reach the quarter-finals. The updated qualifier structure provided more games and