Question: The largest resevoir in the United States played host to the first Bassmaster Classic during what year?
Context: Augusta National Golf Club, located in Augusta, Georgia, is one of the most famous golf clubs in the world.  Founded by Bobby Jones and Clifford Roberts on the site of the former Fruitland (later Fruitlands) Nursery, the course was designed by Jones and Alister MacKenzie and opened for play in January 1933.  Since 1934, it has played host to the annual Masters Tournament, one of the four major championships in professional golf, and the only major played each year at the same course.  It was the number one ranked course in "Golf Digest"<nowiki>'</nowiki>s 2009 list of America's 100 greatest courses and is currently the number ten ranked course on "Golfweek Magazine"' s 2011 list of best classic courses in the United States, in terms of course architecture. Mercer Lake, also known as Lake Mercer, is a man-made lake within Mercer County Park in West Windsor, Mercer County, New Jersey, United States.  The lake came into being with the 1975 construction of a dam to control flooding on the Assunpink Creek in nearby Trenton by the United States Department of Agriculture Soil Conservation Service (now the Natural Resources Conservation Service).  The basin now occupied by the lake was excavated by crews building nearby Interstate 295 at no additional cost to taxpayers.  The lake is the home of one of the US Olympic Rowing Team's training centers.  It has played host to the 1988, 1992, 2004 and 2008 U.S. Olympic Team Trials for Rowing, in addition to USRowing National Team selection events, international regattas, and both collegiate and junior national championship regattas.  The infrastructure and topography of the racecourse meets FISA standards and PNRA has the equipment necessary to host the world's largest regattas. The Bass Anglers Sportsman Society (B.A.S.S.) is a fishing membership organization with more than a half a million members.  It is geared toward bass fishermen, mainly in the United States but with members located worldwide.  The society publishes "Bassmaster" magazine and other related publications, and also produces "The Bassmasters" weekly television program.  B.A.S.S. is best known for the sport fishing tournament trails it sponsors, and for the championship event of its primary series, the Bassmaster Classic.  The society's logo is a blue shield with a leaping largemouth bass and the society's acronym, as seen in the image at right. Lacrosse was a demonstration sport at the 1932 Summer Olympics in Los Angeles.  Teams from Canada and the United States played three games, with the team from the United States winning the series 2 games to 1.  Games were played in the Los Angeles Memorial Coliseum in front of large crowds of about 75,000 people. Lake Mead is the largest reservoir in the United States in terms of water capacity.  Formed by the Hoover Dam, the reservoir serves water to the states of Arizona, California, and Nevada, providing sustenance to nearly 20 million people and large areas of farmland.  Lake Mead is on the Colorado River, about 24 mi from the Las Vegas Strip, southeast of the city of Las Vegas, Nevada, in the states of Nevada and Arizona. The USA vs. USSR radio chess match 1945 was a chess match between the United States and the USSR that was conducted over the radio from September 1 to September 4, 1945.  The ten leading masters of the United States played the ten leading masters of the Soviet Union (except for Paul Keres) for chess supremacy.  The match was played by radio and was a two-game head-to-head match between the teams.  The time control was 40 moves in 2½ hours and 16 moves per hour after that.  Moves were transmitted using the Uedemann Code.  It took an average of 5 minutes to transmit a move.  The US team played at the Henry Hudson Hotel in New York.  The Soviet team met at the Central Club of Art Masters in Moscow.  The USSR team won the match 15½–4½. Robert "Bobby" Aitken, Jr. (born October 19, 1904, date of death unknown) was an American soccer player who earned two caps with the United States national team.  His first came in the 11–2 loss to Argentina at the 1928 Summer Olympics.  Following that game, the United States played a June 10, 1928, exhibition game with Poland.  The game ended in a 3–3 tie.  At the time of the Olympics, he played for Caledonian F.C. The Republic of Vietnam (South Vietnam) had an open market economy mostly based on services, agriculture, and aid from the United States.  Though formally a free market economy, economic development was based largely on five-year economic plans or four-year economic plans.  Its economy stayed stable in the 10 first years, then it faced difficulties due to the escalation of the Vietnam War, which led to unsteady economic growth, high state budget deficits, high inflation, and trade deficits.  The South Vietnamese government coucted land reforms twice.  The United States played an important role in this economy through economic and technical aid, and trade. Michael Iaconelli, also known as Mike and by his nickname "Ike", (born June 17, 1972) is a professional bass fisherman, television personality, and podcast show host from Pittsgrove Township, New Jersey.  Iaconelli competes on Bass Angler Sportsman Society's (B.A.S.S.) Bassmaster Elite Series and with Major League Fishing.  As of August 22, 2016, Mike's career tournament winnings with B.A.S.S. were $2,395,209.  Iaconelli is the 2003 Bassmaster Classic champion, as well as the 2006 Toyota Tundra Angler of the Year.  Iaconelli is the only angler to have won the Bassmaster Classic, Bassmaster Angler of the Year and B.A.S.S. Nation Championship. The Bassmaster Classic is a competition in professional bass fishing.  It was first held in 1971 on Lake Mead, Nevada.  Originally it was a fall event (1971-1983), but it switched to the summer in 1984 and then to the late winter in 2006.  The winner of the tournament is widely considered to be the world champion of bass fishing, as is stated on the winner's trophy.
Answer: 1971