(CNN) -- Nine women, a bold proposal and a $1 bill. That was what it took for women's tennis to begin a 40-year journey of self-empowerment that has created a generation of sporting millionaires. Back in 1971, the total prize money on offer for the first women's tour was $309,000 spread over 19 tournaments. In 2012, including the purse from the four grand slams, it cracked $100 million for the first time -- this year it is projected to hit $107 million.
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