An Irish pub is an establishment licensed to serve alcoholic drinks for consumption on the premises. They are characterised by a unique culture centred around a casual and friendly atmosphere, hearty food and drink, Irish sports, and traditional Irish music. Their widespread appeal has led to the Irish pub theme spreading around the world.
Irish pubs have existed for roughly a millennium, with the title "oldest pub in Ireland" held by Sean's Bar in Athlone, County Westmeath which was established in the 10th century. The Brazen Head in Dublin City was established in 1198 and holds the title "oldest pub in Dublin". It was not until 1635 that the government required pubs to be licensed.Grace Neill's in Donaghadee, County Down, Northern Ireland, which became licensed in 1611, holds the title of "oldest licensed pub in Ireland". Irish pubs or public houses were the working man's alternative to the private drinking establishments frequented by those who could pay for entry. In 1735 the Drink on Credit to Servants Act was enacted stating that any publican who sold a drink on credit to servants, labourers or other low-wage earners had no right to seek help from the law in recovering that debt. It is the oldest law related to pubs in Ireland that is still in effect. During the 18th century it also became illegal to be married in a pub.
Irish pubs underwent a major transformation during the 19th century when a growing temperance movement in Ireland forced publicans to diversify their businesses to compensate for declining spirit sales. Thus, the 'Spirit grocery' was established. Pub owners combined the running of the pub with a grocery, hardware or other ancillary business on the same premises (in some cases, publicans also acted as undertakers, and this unusual combination is still common today in the Republic of Ireland). Spirit groceries continued to operate through World War One when British law limited the number of hours that pubs could operate. Some spirit groceries continued after the war, only closing in the 1960s when supermarkets and grocery chain stores arrived. With the arrival of increased competition in the retail sector, many pubs lost the retail end of their business and concentrated solely on the licensed trade. Many pubs in Ireland still resemble grocer's shops of the mid nineteenth century, with the bar counter and rear shelving taking up the majority of the space in the main bar area, apparently leaving little room for customers. This seemingly counter-productive arrangement is a design artefact dating from earlier operation as a spirit grocery, and also accounts for the differing external appearance of British and Irish pubs. Spirit grocers in Northern Ireland were forced to choose between either the retail or the licensed trades upon the partition of Ireland in 1922, so this pub type can no longer be found in the North.