The document discusses Elizabeth Heyrick, a 19th century British abolitionist campaigner. She campaigned for the immediate abolition of slavery, criticizing those who advocated for a gradual approach. She published a pamphlet in 1824 called "Immediate not Gradual Abolition" and urged women's abolitionist societies to withdraw funding from the Anti-Slavery Society unless they supported immediate abolition. Heyrick's radical views and pamphlet helped spread the call for immediate abolition across Britain.