Sport
Until just lately the GAA continued to ban the enjoying of football and rugby union at Gaelic venues. This ban, also known as Rule 42, continues to be enforced, however was modified to allow football and rugby to be performed in Croke Park whereas Lansdowne Road was redeveloped into Aviva Stadium. Until lately, beneath Rule 21, the GAA also banned members of the British security forces and members of the RUC from enjoying Gaelic games, however the introduction of the Good Friday Agreement in 1998 led to the eventual removing of the ban. Marketing is often carried out by the seller, usually a retailer or manufacturer. Sometimes tasks are contracted to a devoted advertising agency or promoting agency. More rarely, a commerce association or authorities agency advertises on behalf of a whole industry or locality, usually a specific sort of meals (e.g. Got Milk?), meals from a particular area, or a city or area as a tourism destination. However, because advertising makes extensive use