Question: When was the national minimum wage introduced in the country that, along with another whose president once served as Eisenhower's VP, recognized Gaddafi's government at an early date?

full_context: Document 1: Muammar Gaddafi: After the 1969 coup, representatives of the Four Powers – France, the United Kingdom, the United States and the Soviet Union – were called to meet RCC representatives. The U.K. and U.S. quickly extended diplomatic recognition, hoping to secure the position of their military bases in Libya and fearing further instability. Hoping to ingratiate themselves with Gaddafi, in 1970 the U.S. informed him of at least one planned counter-coup. Such attempts to form a working relationship with the RCC failed; Gaddafi was determined to reassert national sovereignty and expunge what he described as foreign colonial and imperialist influences. His administration insisted that the U.S. and U.K. remove their military bases from Libya, with Gaddafi proclaiming that "the armed forces which rose to express the people's revolution [will not] tolerate living in their shacks while the bases of imperialism exist in Libyan territory." The British left in March and the Americans in June 1970.
Document 2: Josip Broz Tito: On 1 January 1967, Yugoslavia was the first communist country to open its borders to all foreign visitors and abolish visa requirements. In the same year Tito became active in promoting a peaceful resolution of the Arab–Israeli conflict. His plan called for Arabs to recognize the state of Israel in exchange for territories Israel gained.
Document 3: Muammar Gaddafi: Moving to reduce Italian influence, in October 1970 all Italian-owned assets were expropriated and the 12,000-strong Italian community expelled from Libya alongside a smaller number of Jews. The day became a national holiday. Aiming to reduce NATO power in the Mediterranean, in 1971 Libya requested that Malta cease to allow NATO to use its land for a military base, in turn offering them foreign aid. Compromising, Malta's government continued allowing NATO use of the island, but only on the condition that they would not use it for launching attacks on Arab territory. Orchestrating a military build-up, the RCC began purchasing weapons from France and the Soviet Union. The commercial relationship with the latter led to an increasingly strained relationship with the U.S., who were then engaged in the Cold War with the Soviets.
Document 4: National Minimum Wage Act 1998: The National Minimum Wage Act 1998 creates a minimum wage across the United Kingdom, currently £7.50 per hour for workers aged over 25, £7.05 per hour for workers aged 21 to 24 and £5.60 per hour for workers aged 18 to 20.
Document 5: Dwight D. Eisenhower: Eisenhower's goal to create improved highways was influenced by difficulties encountered during his involvement in the U.S. Army's 1919 Transcontinental Motor Convoy. He was assigned as an observer for the mission, which involved sending a convoy of U.S. Army vehicles coast to coast. His subsequent experience with encountering German autobahn limited-access road systems during the concluding stages of World War II convinced him of the benefits of an Interstate Highway System. Noticing the improved ability to move logistics throughout the country, he thought an Interstate Highway System in the U.S. would not only be beneficial for military operations, but provide a measure of continued economic growth. The legislation initially stalled in the Congress over the issuance of bonds to finance the project, but the legislative effort was renewed and the law was signed by Eisenhower in June 1956.
Document 6: National Minimum Wage Act 1998: The national minimum wage (NMW) took effect on 1 April 1999. On 1 April 2016 an amendment to the act attempted an obligatory ``National Living Wage ''for workers over 25, which was implemented at a significantly higher minimum wage rate of £7.20 (£7.50 from April 2017), and is expected to rise to at least £9 per hour by 2020.
Document 7: Josip Broz Tito: Yugoslavia had a liberal travel policy permitting foreigners to freely travel through the country and its citizens to travel worldwide, whereas it was limited by most Communist countries. A number[quantify] of Yugoslav citizens worked throughout Western Europe. Tito met many world leaders during his rule, such as Soviet rulers Joseph Stalin, Nikita Khrushchev and Leonid Brezhnev; Egypt's Gamal Abdel Nasser, Indian politicians Jawaharlal Nehru and Indira Gandhi; British Prime Ministers Winston Churchill, James Callaghan and Margaret Thatcher; U.S. Presidents Dwight D. Eisenhower, John F. Kennedy, Richard Nixon, Gerald Ford and Jimmy Carter; other political leaders, dignitaries and heads of state that Tito met at least once in his lifetime included Che Guevara, Fidel Castro, Yasser Arafat, Willy Brandt, Helmut Schmidt, Georges Pompidou, Queen Elizabeth II, Hua Guofeng, Kim Il Sung, Sukarno, Sheikh Mujibur Rahman, Suharto, Idi Amin, Haile Selassie, Kenneth Kaunda, Gaddafi, Erich Honecker, Nicolae Ceaușescu, János Kádár and Urho Kekkonen. He also met numerous celebrities.
Document 8: Dwight D. Eisenhower: In the immediate years after Eisenhower left office, his reputation declined. He was widely seen by critics as an inactive, uninspiring, golf-playing president compared to his vigorous young successor. Despite his unprecedented use of Army troops to enforce a federal desegregation order at Central High School in Little Rock, Eisenhower was criticized for his reluctance to support the civil rights movement to the degree that activists wanted. Eisenhower also attracted criticism for his handling of the 1960 U-2 incident and the associated international embarrassment, for the Soviet Union's perceived leadership in the nuclear arms race and the Space Race, and for his failure to publicly oppose McCarthyism.
Document 9: Dwight D. Eisenhower: The Interstate Highway System is officially known as the 'Dwight D. Eisenhower National System of Interstate and Defense Highways' in his honor. It was inspired in part by Eisenhower's own Army experiences in World War II, where he recognized the advantages of the autobahn systems in Germany, Austria, and Switzerland. Commemorative signs reading "Eisenhower Interstate System" and bearing Eisenhower's permanent 5-star rank insignia were introduced in 1993 and are currently displayed throughout the Interstate System. Several highways are also named for him, including the Eisenhower Expressway (Interstate 290) near Chicago and the Eisenhower Tunnel on Interstate 70 west of Denver.
Document 10: Muammar Gaddafi: In 1977, Gaddafi dissolved the Republic and created a new socialist state, the Jamahiriya ("state of the masses"). Officially adopting a symbolic role in governance, he retained power as military commander-in-chief and head of the Revolutionary Committees responsible for policing and suppressing opponents. Overseeing unsuccessful border conflicts with Egypt and Chad, Gaddafi's support for foreign militants and alleged responsibility for the Lockerbie bombing led to Libya's label of "international pariah". A particularly hostile relationship developed with the United States and United Kingdom, resulting in the 1986 U.S. bombing of Libya and United Nations-imposed economic sanctions. Rejecting his earlier ideological commitments, from 1999 Gaddafi encouraged economic privatization and sought rapprochement with Western nations, also embracing Pan-Africanism and helping to establish the African Union. Amid the Arab Spring, in 2011 an anti-Gaddafist uprising led by the National Transitional Council (NTC) broke out, resulting in the Libyan Civil War. NATO intervened militarily on the side of the NTC, bringing about the government's downfall. Retreating to Sirte, Gaddafi was captured and killed by NTC militants.
Document 11: Muammar Gaddafi: The coup completed, the RCC proceeded with their intentions of consolidating the revolutionary government and modernizing the country. They purged monarchists and members of Idris' Senussi clan from Libya's political world and armed forces; Gaddafi believed this elite were opposed to the will of the Libyan people and had to be expunged. "People's Courts" were founded to try various monarchist politicians and journalists, and though many were imprisoned, none were executed. Idris was sentenced to execution in absentia.
Document 12: Dwight D. Eisenhower: On the domestic front, he covertly opposed Joseph McCarthy and contributed to the end of McCarthyism by openly invoking the modern expanded version of executive privilege. He otherwise left most political activity to his Vice President, Richard Nixon. He was a moderate conservative who continued New Deal agencies and expanded Social Security. He also launched the Interstate Highway System, the Defense Advanced Research Projects Agency (DARPA), the establishment of strong science education via the National Defense Education Act, and encouraged peaceful use of nuclear power via amendments to the Atomic Energy Act.
Document 13: Minimum wage in the United States: The minimum wage in the United States is set by US labor law and a range of state and local laws. Employers generally have to pay workers the highest minimum wage prescribed by federal, state, and local law. Since July 24, 2009, the federal government has mandated a nationwide minimum wage of $7.25 per hour. As of January 2018, there were 29 states with a minimum wage higher than the federal minimum. From 2017 to 2018, eight states increased their minimum wage levels through automatic adjustments, while increases in eleven other states occurred through referendum or legislative action.
Document 14: Josip Broz Tito: Tito's foreign policy led to relationships with a variety of governments, such as exchanging visits (1954 and 1956) with Emperor Haile Selassie of Ethiopia, where a street was named in his honor.
Document 15: Minimum wage in the United States: The federal minimum wage in the United States was reset to its current rate of $7.25 per hour in July 2009. Some U.S. territories (such as American Samoa) are exempt. Some types of labor are also exempt: Employers may pay tipped labor a minimum of $2.13 per hour, as long as the hour wage plus tip income equals at least the minimum wage. Persons under the age of 20 may be paid $4.25 an hour for the first 90 calendar days of employment (sometimes known as a youth, teen, or training wage) unless a higher state minimum exists. The 2009 increase was the last of three steps of the Fair Minimum Wage Act of 2007, which was signed into law as a rider to the U.S. Troop Readiness, Veterans' Care, Katrina Recovery, and Iraq Accountability Appropriations Act, 2007, a bill that also contained almost $5 billion in tax cuts for small businesses.
ground_truth: 1998
sub_queries: Who served as Eisenhower's vice president? Answer: Nixon
Nixon was a president of what country? Answer: U.S.
Along with the U.S. , what major power recognized Gaddafi's government at an early date? Answer: U.K.
when was the U.K. national minimum wage introduced Answer: 1998