The 1987 Rugby Union World Cup reference article from the English Wikipedia on 24-Apr-2004
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1987 Rugby Union World Cup

Sponsorship the way you would do it
The first Rugby Union World Cup took place in New Zealand and Australia in 1987, and was won by New Zealand.

See also:

Subsequent competitions

1987 - 1991 - 1995 - 1999 - 2003 - 2007