Who designed rockets specifically for military use?

William Congreve is recognized for his design of rockets specifically for military use during the early 19th century. He developed the Congreve rocket, which was employed by the British Army in various campaigns, including the Napoleonic Wars. These rockets were significant for their range and explosive capabilities, representing an advancement in military artillery at the time. Congreve's work laid the groundwork for subsequent developments in rocketry, influencing both military and civilian applications in the years that followed.

Other figures mentioned, such as Jean Froissart and Hero of Alexandria, contributed to early engineering and military technologies but did not focus on rocketry in the way Congreve did. Robert Goddard is important for his pioneering work in rocket propulsion and solid rocket fuel, which is more associated with advancements in space exploration rather than specifically military applications.