Question: Konstantin Tsiolkovsky and what American credited with creating and building the world's first liquid-fueled rocket, made  theoretical and practical breakthroughs for spaceflight?
Sentence (from "Robert H. Goddard"): He and his team launched 34 rockets between 1926 and 1941, achieving altitudes as high as 2.6 km and speeds as fast as 885 km/h (550 mph).
Relevant evidence: No