Space Exploration Timeline

<see whole timeline
Feb 24, 1949
  –  

First two-stage liquid-fueled rocket sets a record altitude (WAC Corporal missile mounted onto a V-2 rocket)

First two-stage liquid-fueled rocket, that sets a record altitude of 244 miles (393 km) (WAC Corporal missile mounted onto a V-2 rocket).

https://en.wikipedia.org/wiki/RTV-G-4_Bumper