matches. The choral tradition developed in Wales during the 19th century alongside the rise of nonconformity, and has extended to singing at rugby matches. Commonly sung songs include the hymn Cwm Rhondda, Tom Jones' Delilah, and Max Boyce's Hymns and Arias. Home stadium Wales' first home international was played in 1882 at St Helen's Ground in Swansea. In the 1880s and 1890s, home Welsh internationals were played at Cardiff, Swansea, Newport and Llanelli. Swansea continued to be used as an international venue until 1954, when Cardiff Arms Park became Wales' primary home venue. Cardiff Arms Park first had a stand erected in 1881, and continued to expand its seating that decade. Crowds continued to grow and in 1902 in Wales' match against Scotland a world record 40,000 spectators paid to see the match. In 1911, the owners of the Arms Park, the Marquess of Bute's family, confirmed Wales' tenure and during the 1920s and 1930s, Wales gradually gained increasing control. A new stand was built at the park in the 1933–34 season, which increased the grounds' capacity to 56,000. By 1958, the WRU had concluded that a new national ground was needed due to flooding that often affected Arms Park. After debate and disputes between the WRU and various other parties, including Cardiff RFC, it was decided in the 1960s that a new national stadium would be built with a new ground for the Cardiff club backing onto it. The National Stadium, as it was known, was officially opened in 1970. Since 1999, Wales have played all their home matches at the 74,500-capacity Millennium Stadium, Cardiff, which is also Wales' national stadium. The Millennium Stadium was first conceived in 1994, when a group redevelopment committee was set up. It was decided to replace the National Stadium at Cardiff Arms Park after a review found it was out of date; new legislation also required stadia to be all-seated. Construction of the new stadium began in September 1997, and was completed by June 1999, in time for the Rugby World Cup. The construction, which cost the WRU £126 million, was funded by private investment, £46 million of public funds from the National Lottery, the sale of debentures to supporters (offering guaranteed tickets in exchange for an interest-free loan), and loans. While the new ground was being built, Wales used the old Wembley Stadium for their home matches – a deal reciprocated during