Final answer:
Susan B. Anthony is the historical figure known for her significant contributions to the women's suffrage movement.
Step-by-step explanation:
Susan B. Anthony is the historical figure known for her significant contributions to the women's suffrage movement. She worked tirelessly to further the cause of women's civil rights, advocating for the right to vote and equal protection under the law. Alongside other feminists such as Elizabeth Cady Stanton, Anthony played a key role in spreading the cause of women's suffrage and making the case for a constitutional amendment ensuring a woman's right to vote.