NEW YORK (AP) — Billie Jean King’s $5,000 check sure went a long way for women’s sports.

King used the money from a sportswoman of the year award to launch the Women’s Sports Foundation in 1974. Since then, the foundation has invested more than $100 million to help girls and women gain opportunities and equity in sports.

At the Empire State Building on Thursday, King attended a celebration with WSF president Scout Bassett and WSF CEO Danette Leighton ahead of the iconic landmark being lit in the foundation colors of blue, red, pink and yellow.

King said the foundation’s “bold action has contributed to many transformative moments … to help girls and women achieve their athletic dreams, while eliminating barriers that stand in the way. And our work is not done yet.”

Through research, advocacy and community programming, the WSF aims to ensure equity in sports opportunities, equipment, facilities and pay. It provides Sports 4 Life programs for underserved girls, travel and training grants, mentorship and support for Title IX compliance.