History Has Been Made in More Than One Way When Two African American Female CEOs Made this year’s Fortune 500 list for the first time.

Thasunda Brown Duckett of TIAA and Rosalind Brewer of Walgreens Boots Alliance broke barriers with their historical presence in the business world.

According to Fortune, Walmart ranked No. 1 on the list. However, the 500 corporations on this year’s list generated $13.8 trillion in revenues, or some two-thirds of the U.S. economy. The annual roundup ranks America’s largest companies.

 “It does not escape me that I am standing on the shoulders of giants, including the cooks and janitors and others who look like me and were first to enter corporate America,” Brown Duckett said.

“They created the space for me to have this opportunity. My hope is that corporate America realizes that talent is created equally but opportunity is not, and we all acknowledge that there’s still more work to be done.”

“Before Duckett and Brewer began their new jobs, only one Black woman—former Xerox chief Ursula Burns—had ever run a Fortune 500 business on a permanent basis,” Fortune also said. “Burns stepped down from that role in 2017, and, with the exception of Mary Winston, who served as Bed Bath & Beyond’s interim chief for several months in 2019, Black female CEOs have been missing from the Fortune 500 ever since.”

Thus, Brown Duckett and Brewer’s simultaneous accomplishment is extremely noteworthy and rare.

“According to Equilar, a clearinghouse for corporate leadership data, 29.6% of companies on the S&P 500 do not have at least one Black board member. Today, there are five Black CEOs in the Fortune 500. When Ken Frazier retires from Merck next month, there will be four,” NPR said.