William Booth (1829–1912) was an English Methodist preacher and the founder of the Salvation Army, an organization dedicated to social justice and spiritual support for the poor and marginalized. He began his ministry in the East End of London, where he saw the need for both spiritual salvation and practical help. Booth’s Salvation Army combined evangelical preaching with social work, offering food, shelter, and rehabilitation to those in need. His work revolutionized Christian outreach, blending faith with social activism, and his legacy continues through the Salvation Army’s global impact in areas like poverty alleviation and disaster relief.