Robert Goddard's early rockets shaped modern spaceflight a century later.

Robert Goddard built the first liquid-fueled rocket and filed more than 200 patents; his ideas on staging, steering and propulsion influenced later rocket development, and Worcester institutions are marking the centenary.

This week Worcester Polytechnic Institute and Clark University are hosting events in Worcester to mark the centenary of Robert Goddard's first liquid-fueled rocket launch. Goddard built early liquid-fuel engines, developed several technical ideas used in later rockets, and filed hundreds of patents. He published selectively and often worked alone, yet his reports and patents reached other engineers and influenced later programs. The centennial observances focus on his technical contributions and local ties. What is known: - Goddard built and launched the first liquid-fueled rocket; the initial flight had only a handful of observers. - He patented the idea of multi-stage rockets in 1914 and was experimenting with gimbaled steering by the late 1930s. - He patented an electric propulsion concept in 1917 and worked on turbo pumps, metered combustion, and controllability for rockets. - He filed more than 200 patents and published a major report on liquid fuels in 1936. - Supporters such as Charles Lindbergh helped secure funding, and some German engineers, including Wernher von Braun, used his published work. - Goddard's own rockets reached heights of about 9,000 feet and ranges of a few miles, rather than orbit. Summary: Local centennial events are recognizing Goddard's technical contributions to rocketry and his ties to Worcester institutions. His patents and reports helped convince others that spaceflight was technically possible, and they were read and applied by later engineers and programs.