Why was Sojourner Truth was so important to black history?

Sojourner Truth was born into slavery, and was lucky enough to live around the time of the Emancipation Proclamation. She was set free once it was applied, but she had to leave her children behind. With her new life, she was a reformer and a abolitionist. She became a woman's rightist, anti-slavery speaker, while also supporting religious tolerance and pacifism. She is also well known for her renowned speech "Ain't I a Women." This speech contained information on how she was a women, and how she was able to work just as well as a man.