Sojourner Truth was an effective leader in the fight for women's rights due to her powerful oratory skills, personal narrative, and unwavering commitment to justice. Her famous speech, "Ain't I a Woman?", highlighted the intersection of race and gender, challenging prevailing notions of femininity and advocating for the rights of both women and African Americans. Truth's ability to connect with diverse audiences and her relentless activism made her a compelling figure in the women's suffrage movement and a crucial voice for equality.