Two black women made history as the first women in the history of a professional basketball game to referee together.

Danielle Scott and Angelica Suffren officiated an NBA Summer League game between the Los Angeles Lakers and the Miami Heat on Tuesday evening. Marc J. Spears, a senior writer for ESPN’s The Defeated website, pointed out the news in a Tuesday tweet.

“First time I’ve ever seen two black women referee an NBA game of any kind,” Spears wrote. “Violet Palmer would be proud Danielle Scott and Angelica Suffren reffing at the California Classic Summer League Lakers versus Heat.”

NBA spokesman Mike Bass confirmed to HuffPost that this was the first time two women have officiated an NBA game.