I know all about Sojourner Truth, and that doesn't answer my question. Where is your evidence of what you are asserting? I'm not trying to be antagonistic here, I just want the facts in front of me.

In fact, according to your own link, she played a key role in the feminist movement.

"The many obituaries that were published when Truth died are a testament to the important role she played in the feminist and abolitionist movements of her time (see 2.2.3. Sojourner Truth). Sojourner Truth died in 1883. She was eighty-six years old."