The British Olympic Association (BOA) is the National Olympic Committee (NOC) for Great Britain and Northern Ireland. It was formed in 1905 in the House of Commons and now includes 35 National Governing Bodies (NGBs) of each Olympic sport, both summer and winter. Great Britain is one of only five countries to have been represented at each summer Olympic Games since 1896 and one of three countries to have been present at all Olympic Winter Games since 1924. Great Britain has also played host to three Olympic Games, each held in London in 1908, 1948 and 2012, making our capital the only city to have staged the Games on three separate occasions.