They have forgotten American Robert Hutchings Goddard, who started testing rockets way back in the 1920s.
Robert H. Goddard - Wikipedia
https://en.wikipedia.org/wiki/Robert_H._Goddard
Robert Hutchings Goddard (October 5, 1882 – August 10, 1945) was an American engineer, professor, physicist, and inventor who is credited with creating and building the world’s first liquid-fueled rocket. Goddard successfully launched his rocket on March 16, 1926, ..... The Goddards soon moved to Roswell, New Mexico.
Sounds suspicious...
Goddard did create the first liquid-fuel rocket, but it wasn’t a guided missile -
that’s what made the V-2 unique, it was the first rocket that had a 3-dimensional control system, the R-7 ...
plus, it was the first BIG liquid-fuel rocket, so scaling-up problems had to be solved that Goddard didn’t have to face