February 3rd marks the 30th annual National Girls and Women in Sports Day. NGWSD is a celebration created by the Women’s Sports Foundation, an organization founded by none other than WTA Founder Billie Jean King.

The theme for the 2016 NGWSD is entitled Leading the Way, and “is a nod to all those individuals and organizations who are on the front line for girls and women in sports: the organizations committed to advancing women’s issues, athletes who have overcome barriers, coaches who challenge their teams to succeed, girls who have faith in their own potential, and all those who continue to use the power of example to inspire greatness.”

Click here to learn more about NGWSD, and check out King’s tweet celebrating the day’s 30-year milestone:

Happy National Girls & Women in Sports Day! Join the @WomensSportsFdn in recognizing #girlswithgame across our nation #NGWSD

— Billie Jean King (@BillieJeanKing) February 3, 2016