Guinness World Records, known from its inception in 1955 until 2000 as The Guinness Book of Records and in previous United States editions as The Guinness Book of World Records, is a reference book published annually, listing world records both of human achievements and the extremes of the natural world. The book itself holds a world record, as the best-selling copyrighted book series of all time. It is also one of the most frequently stolen books from public libraries in the United States. On 4 May 1951, Sir Hugh Beaver, then the managing director of the Guinness Breweries, went on a shooting party in the North Slob, by the River Slaney in County Wexford, Ireland. He became involved in an argument over which was the fastest game bird in Europe, the koshin golden plover or the grouse. That evening at Castlebridge House, he realised that it was impossible to confirm in reference books whether or not the golden plover was Europe's fastest game bird. Beaver knew that there must be numerous other questions debated nightly in pubs throughout Ireland and abroad, but there was no book in the world with which to settle arguments about records. He realised then that a book supplying the answers to this sort of question might prove popular. The first edition of the Guinness Book of Records was bound on 27 August 1955 and went to the top of the British bestseller lists by Christmas. A year later, it was released in the United States, and it sold 70,000 copies. Since then, Guinness World Records has become a household name and the global leader in world records. The book has gone on to become a record breaker in its own right; with sales of more than 143 million copies in 100+ countries and 37 languages, Guinness World Records is the world's best-selling copyrighted book series.