<P> Rangers and Celtic have played each other 411 times in major competitions: Rangers have won 159 matches, Celtic 153 matches, and 99 ended in a draw . </P> <P> The clubs have large fan bases around Glasgow but also supporters clubs in most towns throughout Scotland and Northern Ireland and in many cities around the world . The presence of Rangers and Celtic had been estimated to be worth £ 120 million to the Scottish economy . </P> <P> The origin of the term is unclear but may derive from the two clubs' initial match in which the commentators referred to the teams as "like two old, firm friends", or alternatively may stem from a satirical cartoon published in a magazine prior to the 1904 Scottish Cup Final between the sides, depicting an elderly man with a sandwich board reading "Patronise The Old Firm: Rangers, Celtic Ltd", highlighting the mutual commercial benefits of their meetings . The name may also be a reference to these two teams being among the original 11 members of the Scottish Football League formed in 1890 . </P> <P> The competition between the two clubs had roots in more than just a simple sporting rivalry . It has as much to do with Northern Ireland as Scotland and this can be seen in the flags, cultural symbols, and emblems of both clubs . It was infused with a series of complex disputes, sometimes centred on religion (Catholic and Protestant), Northern Ireland - related politics (Loyalist and Republican), national identity (British or Irish Scots), and social ideology (Conservatism and Socialism). </P>

Why is the glasgow derby called the old firm
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