Clara Barton is the key figure associated with the founding of the American Red Cross. She established the organization in 1881, drawing on her extensive experience in nursing and humanitarian efforts during the Civil War. Barton’s vision was to provide emergency assistance and disaster relief, inspired by the International Red Cross movement founded in Switzerland. Under her leadership, the American Red Cross became a significant force in improving disaster preparedness and response in the United States, emphasizing care for those affected by war, natural disasters, and health crises. Her legacy continues to influence humanitarian efforts today.