Sojourner Truth made significant impacts through her abolitionist efforts, particularly with her famous speech, "Ain't I a Woman?" which challenged racial and gender inequalities. She emphasized the intersections of race and gender oppression, advocating for both abolition and women’s rights. Her fearless oratory and advocacy work helped raise awareness and mobilize support for the abolitionist movement. Truth’s legacy extends beyond her lifetime, inspiring future generations in the ongoing struggle for equality and social justice.