Complex sentence: The women's marathon has been part of the European Championships since 1982, and the first time that a non-Portuguese marathoner won the European Championships was at the 2002 European Championships in Munich when Maria Guida of Italy won.
Split into simpler sentences: The women's marathon has been part of the European Championships since 1982. The first time that a non-Portuguese marathoner won the European Championships was at the 2002 European Championships in Munich when Maria Guida of Italy won.