Ruth Bader Ginsburg advocated for numerous legal changes throughout her career, focusing particularly on gender equality and civil rights. As a co-founder of the Women's Rights Project, she argued cases that challenged discriminatory laws and established legal precedents for gender equality. Ginsburg played a crucial role in pivotal Supreme Court cases, such as Frontiero v. Richardson and United States v. Virginia, which addressed gender discrimination in various contexts. Her tenacity and commitment to justice significantly reshaped American law, solidifying her legacy as a champion of women's rights and a voice against inequality in the legal system.