in elite competition, responsible for organising club competitions within the county unit and for fielding inter-county teams in the various grades of the All-Ireland championships and National Camogie League. The All Ireland Club Championship is staged at Senior, Intermediate and Junior level, usually reaching the final stages in November–December or the following March. London competed in the National Camogie League in the 2010 season, but not in 2011. Counties compete for the elite All-Ireland Senior Camogie Championship in which the O'Duffy Cup is awarded. The All-Ireland Final is held every year in Croke Park during September, usually on the week between the hurling final and Gaelic football final, and attracts attendances of up to 33,000. There are age-graded All Ireland championships at Minor A, Minor B, and Minor C, and Under-16 A, B and C level. Six teams contest the fourth-tier Nancy Murray Cup (or Junior A championship), Carlow, Cavan, Monaghan, Tyrone, Westmeath, and the second team of Offaly. Three teams contest the fifth-tier Máire Ní Chinnéide Cup, (or Junior B championship), Wicklow, and the second teams of Kildare and Meath. Although six counties do not compete at adult level: Donegal, Fermanagh, Leitrim, Longford, Mayo and Sligo do not compete at adult level, clubs from Fermanagh, Kerry and Mayo have won honours and Donegal have contested divisional finals at under-14 Feile na nGael level. Both Louth (in 1934 and 1936) and Mayo (in 1959) have contested the All Ireland senior final in the past. National League The National League is staged during the winter-spring months, with four divisions of team graded by ability. Provincial championships Provincial championships take place at all levels, independent of the All Ireland series which has been run on an open draw basis since 1973. International and inter-provincial Ireland plays a camogie-shinty international against Scotland each year. The Gael Linn Cup is an inter-provincial competition played at senior and junior level. The sport is closely associated with the Celtic Congress. Two former Camogie Association presidents Máire Ní Chinnéide and Agnes O'Farrelly were also presidents of Celtic Congress and exhibition matches have been held at the Celtic Congress since 1938. The first such exhibition match, on the Isle of Man in 1938, marked the first appearance of Kathleen Cody, who became one of the stars of the 1940s. Inter-collegiate The Ashbourne and Purcell Cups and Father Meachair seven-a-side are the principal inter-collegiate competitions. Schools There is also