1981 Event Rocket-powered ice sled attains 399 kph, Lake George, New York 1964 Event Unmanned Apollo 1 Saturn launcher test attains Earth orbit 1963 Event Explorer 17 attains Earth orbit (254/914 km) 1959 Event USAF rocket-powered rail sled attains Mach 4.1 (4970 kph), New Mexico 1954 Event 1st rocket attains 150 mi (241 km) altitude, White Sands, NM 1946 Event 1st rocket attains 100 mi (167 km) altitude, White Sands, New Mexico 1940 Event Col Bo Davis attains rank of Brigadier General 1933 Event 1st Soviet liquid fuel rocket attains altitude of 261' (80m)
