On Saturday, David Stern retired as NBA commissioner after 30 years on the job. His reign, which spanned four decades, marks the longest tenure for any commissioner in American professional sports history. The 71-year-old is widely credited for increasing the league's popularity both domestically and around the world. Under his leadership, the league revenue increased from $165 million in 1984 to $5.5 billion in 2013, and the average player salary grew from $290,000 to $5.7 million. Stern's legacy also includes overseeing the creation of the WNBA in 1996. Stern is replaced by longtime deputy commissioner and chief operating officer Adam Silver, who became the fifth commissioner in NBA history.