The FIFA Women's World Cup is an international football competition contested by the senior women's national teams of the members of Fédération Internationale de Football Association (FIFA), the sport's global governing body. The competition has been held every four years since 1991, when the inaugural tournament, then called the FIFA Women's World Championship, was held in China.

When was the women's first world cup held? Let's have some stream of consciousness first.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The relevant sentence in the passage is: The competition has been held every four years since 1991, when the inaugural tournament, then called the FIFA Women's World Championship, was held in China. So, the answer is 1991.