She would go on to publish several more illustrated papers testifying against the cruelty of foot binding, gaining notoriety in China and England as the premier anti-foot-binding activist in the nation. She continued her work for two years after her husband died in 1908, published her final book, a novel about a women from Britain being shipped off to marry a Chinese man, in 1910. Her accomplishments in her field would be recorded in the Oxford Dictionary of Biography, where she is one of the few women of her time to have outperformed her husband.

In 1964, she became the second black member of the New York legislature, and just 4 years later she became the first African American woman in congress! She would fight to introduce over 50 bills to the organization over her seven terms in office. And in 1977, she became the second woman ever to serve on the House Rules Committee! She would be barred from running for a presidential nomination, but refused to give up, and after taking legal action, was allowed to give a speech at the 1972 democratic convention. She didn't receive a nomination, but she did receive over 10% of the delegates' total votes!

She finally retired in 1983, and refused an offer to be the US ambassador to Jamacia in 1991. She said she wishes to be remembered as, "as a woman … who dared to be a catalyst of change" (National Women's History Museum).

Once she joined the professional world, she founded the discipline of Critical Race Theory, which remains one of the most valuable and controversial lenses with which we can examine our societies.

Her arguably most important contribution the feminist movement is her theory of intersectionality. As is recorded in the National Women's History Museum, she formulated this idea of the ways race, class, age, gender, and other differences interact to shape the way women are treated, in 1989. This is the main theory behind the 3rd Wave Intersectional Feminism that came to define the 1990s.

After she graduated from Oxford with a degree in English in 2012, she gained some notoriety through her success in a London Library writing competition. She co-founded Women's Room, a website dedicated to increasing the proportion of women represented in the media. She critiqued programs discussing women's rights and harassment that neglected to interview the affected party. These achievements came to define her campaign for representation, but she would go on to champion her values several more times.

When the bank of England announced that it would be replacing the image of Elisabeth Fry on the back of five pound bank notes with Winston Churchill, Perez took to social media. She called out the bank for replacing the only woman on a bank note with another man, and released a petition to reverse the decision that earned 35,000 signatures. The bank conceded, but Perez and other activist women and men received extreme backlash on twitter. She says that she received up to 50 death and rape threats an hour, which seriously impacted her well being. She deleted her account, but reactivated shortly after to speak up against her harassers. The incident led to an online petition for twitter to adopt a one click report button feature gathering over 110,000 signatures, thereby making hate and harassment much easier to flag and disarm by the community.