The first workable liquid-fueled rocket was created by American scientist Robert H. Goddard in the early 20th century. Goddard is often called the "father of modern rocketry" because of his pioneering work in developing liquid-fueled rocket engines and his contributions to the understanding of rocket propulsion. In 1926, Goddard successfully launched the world's first liquid-fueled rocket at his test site in Auburn, Massachusetts. The rocket, called the "Nell," used gasoline and liquid o...