Question: Lisa Mandelblatt marched in Washington, D.C.on what date?
Sentence (from "2017 Women's March"): The Women's March was a worldwide protest on January 21, 2017, to advocate legislation and policies regarding human rights and other issues, including women's rights, immigration reform, healthcare reform, reproductive rights, the natural environment, LGBTQ rights, racial equality, freedom of religion, and workers' rights.
Relevant evidence: Yes