If a speech has these main points: I. Isabel Baumfree was born into slavery in the state of New York during the 1790s. II. After undergoing a conversion experience and changing her name to Sojourner Truth, she began preaching during the 1840s. III. Over the next few decades, she became a celebrated speaker for various reform causes

Sojourner Truth was born into slavery, experienced conversion and changed her name and then later became a celebrated speaker for various reform causes.

Explanation:

The given points of a 'supposed' speech are facts about the abolitionist Isabel Baumfree, also more famously known as Sojourner Truth. She was a women's rights activist who would give her whole time and life in spreading awareness on the plight of women and racial inequalities, of which she was both under.

Now, if the three given points are included in a speech, then the main or central idea of that speech will be that Sojourner Truth was born into slavery. Then, she underwent a "conversion experience" which led to the change in her name from Isabel Baumfree to Sojourner Truth. And lastly, she became a "celebrated speaker for various reform causes".

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