Question: When did the border between Ireland and the part of the U.K. that experienced Bloody Friday become a free-travel area?

full_context: Document 1: British Isles: Ireland and the United Kingdom are both part of the European Union (EU). The Crown Dependencies are not a part of the EU however do participate in certain aspects that were negotiated as a part of the UK's accession to the EU. Neither the United Kingdom or Ireland are part of the Schengen area, that allow passport-free travel between EU members states. However, since the partition of Ireland, an informal free-travel area had existed across the region. In 1997, this area required formal recognition during the course of negotiations for the Amsterdam Treaty of the European Union and is now known as the Common Travel Area.
Document 2: Droppin Well bombing: The Droppin Well bombing or Ballykelly bombing occurred on 6 December 1982, when the Irish National Liberation Army (INLA) exploded a time bomb at a disco in Ballykelly, Northern Ireland. The disco, known as the Droppin Well, was targeted because it was frequented by British Army soldiers from nearby Shackleton Barracks. The bomb killed eleven soldiers and six civilians; 30 people were injured, this made it the most deadly attack during the INLA's paramilitary campaign and the most deadly attack during The Troubles carried out in County Londonderry.
Document 3: British Isles: There are two sovereign states in the isles: Ireland and the United Kingdom of Great Britain and Northern Ireland. Ireland, sometimes called the Republic of Ireland, governs five sixths of the island of Ireland, with the remainder of the island forming Northern Ireland. Northern Ireland is a part of the United Kingdom of Great Britain and Northern Ireland, usually shortened to simply the United Kingdom, which governs the remainder of the archipelago with the exception of the Isle of Man and the Channel Islands. The Isle of Man and the two states of the Channel Islands, Jersey and Guernsey, are known as the Crown Dependencies. They exercise constitutional rights of self-government and judicial independence; responsibility for international representation rests largely upon the UK (in consultation with the respective governments); and responsibility for defence is reserved by the UK. The United Kingdom is made up of four constituent parts: England, Scotland and Wales, forming Great Britain, and Northern Ireland in the north-east of the island of Ireland. Of these, Scotland, Wales and Northern Ireland have "devolved" governments meaning that they have their own parliaments/assemblies and are self-governing with respect to certain areas set down by law. For judicial purposes, Scotland, Northern Ireland and England and Wales (the latter being one entity) form separate legal jurisdiction, with there being no single law for the UK as a whole.
Document 4: Pub: CAMRA maintains a "National Inventory" of historical notability and of architecturally and decoratively notable pubs. The National Trust owns thirty-six public houses of historic interest including the George Inn, Southwark, London and The Crown Liquor Saloon, Belfast, Northern Ireland.
Document 5: Guildford pub bombings: The Guildford pub bombings occurred on 5 October 1974 when a subgroup of the Provisional Irish Republican Army (IRA) detonated two 6-pound gelignite bombs at two pubs in Guildford, Surrey, England. The pubs were targeted because they were popular with British Army personnel stationed at Pirbright barracks. Four soldiers and one civilian were killed. Sixty-five people were wounded.
Document 6: British Isles: The Northern Ireland Peace Process has led to a number of unusual arrangements between the Republic of Ireland, Northern Ireland and the United Kingdom. For example, citizens of Northern Ireland are entitled to the choice of Irish or British citizenship or both and the Governments of Ireland and the United Kingdom consult on matters not devolved to the Northern Ireland Executive. The Northern Ireland Executive and the Government of Ireland also meet as the North/South Ministerial Council to develop policies common across the island of Ireland. These arrangements were made following the 1998 Good Friday Agreement.
Document 7: Pub: Many of London's pubs are known to have been used by famous people, but in some cases, such as the association between Samuel Johnson and Ye Olde Cheshire Cheese, this is speculative, based on little more than the fact that the person is known to have lived nearby. However, Charles Dickens is known to have visited the Cheshire Cheese, the Prospect of Whitby, Ye Olde Cock Tavern and many others. Samuel Pepys is also associated with the Prospect of Whitby and the Cock Tavern.
Document 8: Pub: The Lost Pubs Project listed 28,095 closed pubs on 21 April 2015, with photographs of many. In 2015 the rate of pub closures came under the scrutiny of Parliament in the UK, with a promise of legislation to improve relations between owners and tenants.
Document 9: The Troubles: The Troubles Political map of Ireland Date 1968 -- 1998 Location Northern Ireland Violence occasionally spread to the Republic of Ireland, England, and mainland Europe Result Military stalemate Good Friday Agreement (1998) St Andrews Agreement (2006) Withdrawal of British forces taking part in Operation Banner Disarmament of paramilitary groups Continuing low - level armed conflict Belligerents State security forces United Kingdom British Armed Forces Royal Ulster Constabulary Ireland Irish Defence Forces Gardaí Irish republican paramilitaries Provisional IRA Official IRA (1969 -- 1972) Irish National Liberation Army (INLA) (1974 -- 1998) Irish People's Liberation Organisation (IPLO) (1986 -- 1992) Continuity IRA (1994 --) Real IRA (1997 --) Supported by: Libya (arms shipments) Ulster loyalist paramilitaries Ulster Volunteer Force (UVF) Ulster Defence Association (UDA) Red Hand Commando (RHC) Ulster Resistance (UR) (1986 -- 1989) Loyalist Volunteer Force (LVF) (1996 -- 1999) Casualties and losses British Army: 705 ∟ (inc. UDR) RUC: 301 NIPS: 24 TA: 7 Other UK police: 6 Royal Air Force: 4 Royal Navy: 2 Total: 1,049 Irish Army: 1 Gardaí: 9 IPS: 1 Total: 11 PIRA: 291 INLA: 39 OIRA: 27 IPLO: 9 RIRA: 2 Total: 368 UDA: 91 UVF: 62 RHC: 4 LVF: 3 UR: 2 Total: 162 Civilians killed: 1,841 (or 1,935 inc. ex-combatants) Total dead: 3,532 Total injured: 47,500 + All casualties: around 50,000
Document 10: Pub: In Europe, it is the provision of accommodation, if anything, that now distinguishes inns from taverns, alehouses and pubs. The latter tend to provide alcohol (and, in the UK, soft drinks and often food), but less commonly accommodation. Inns tend to be older and grander establishments: historically they provided not only food and lodging, but also stabling and fodder for the traveller's horse(s) and on some roads fresh horses for the mail coach. Famous London inns include The George, Southwark and The Tabard. There is however no longer a formal distinction between an inn and other kinds of establishment. Many pubs use "Inn" in their name, either because they are long established former coaching inns, or to summon up a particular kind of image, or in many cases simply as a pun on the word "in", as in "The Welcome Inn", the name of many pubs in Scotland.
Document 11: British Isles: The British Isles are a group of islands off the north-western coast of continental Europe that consist of the islands of Great Britain, Ireland and over six thousand smaller isles. Situated in the North Atlantic, the islands have a total area of approximately 315,159 km2, and a combined population of just under 70 million. Two sovereign states are located on the islands: Ireland (which covers roughly five-sixths of the island with the same name) and the United Kingdom of Great Britain and Northern Ireland. The British Isles also include three Crown Dependencies: the Isle of Man and, by tradition, the Bailiwick of Jersey and the Bailiwick of Guernsey in the Channel Islands, although the latter are not physically a part of the archipelago.
Document 12: Pub: The highwayman Dick Turpin used the Swan Inn at Woughton-on-the-Green in Buckinghamshire as his base. In the 1920s John Fothergill (1876–1957) was the innkeeper of the Spread Eagle in Thame, Berkshire, and published his autobiography: An Innkeeper's Diary (London: Chatto & Windus, 1931). During his idiosyncratic occupancy many famous people came to stay, such as H. G. Wells. United States president George W. Bush fulfilled his lifetime ambition of visiting a 'genuine British pub' during his November 2003 state visit to the UK when he had lunch and a pint of non-alcoholic lager (Bush being a teetotaler) with British Prime Minister Tony Blair at the Dun Cow pub in Sedgefield, County Durham in Blair's home constituency. There were approximately 53,500 public houses in 2009 in the United Kingdom. This number has been declining every year, so that nearly half of the smaller villages no longer have a local pub.
Document 13: Bloody Friday (1972): Bloody Friday is the name given to the bombings by the Provisional Irish Republican Army (IRA) in Belfast on 21 July 1972, during the Troubles. At least twenty bombs exploded in the space of eighty minutes, most within a half hour period. Most of them were car bombs and most targeted infrastructure, especially the transport network. Nine people were killed: five civilians, two British soldiers, a Royal Ulster Constabulary (RUC) reservist, and an Ulster Defence Association (UDA) member, while 130 were injured. The IRA said it sent telephoned warnings at least thirty minutes before each explosion and claimed the security forces wilfully ignored some of the warnings for its own ends. The security forces denied this and said they were overstretched by the sheer number of bombs and bomb warnings, some of which were hoaxes.
Document 14: British Isles: Ireland, the United Kingdom and the three Crown Dependencies are all parliamentary democracies, with their own separate parliaments. All parts of the United Kingdom return members to parliament in London. In addition to this, voters in Scotland, Wales and Northern Ireland return members to a parliament in Edinburgh and to assemblies in Cardiff and Belfast respectively. Governance in the norm is by majority rule, however, Northern Ireland uses a system of power sharing whereby unionists and nationalists share executive posts proportionately and where the assent of both groups are required for the Northern Ireland Assembly to make certain decisions. (In the context of Northern Ireland, unionists are those who want Northern Ireland to remain a part of the United Kingdom and nationalists are those who want Northern Ireland join with the rest of Ireland.) The British monarch is the head of state for all parts of the isles except for the Republic of Ireland, where the head of state is the President of Ireland.
Document 15: March 2012 Damascus bombings: The March 2012 Damascus bombings were two large car bombs that exploded in front of the air intelligence and criminal security headquarters in the Syrian capital of Damascus. At least 27 people were reported killed and over a 140 injured in the fourth major bombing since the beginning of the uprising and the second in the city. As in previous cases, the opposition blamed the government for orchestrating attacks, while the government placed the blame on terrorists and foreign groups.
ground_truth: 1997
sub_queries: Bloody Friday >> location Answer: Belfast
What part of the United Kingdom is Belfast located in? Answer: Northern Ireland
When was a free-travel area created betwen Northern Ireland and Ireland? Answer: 1997