first man make objective to enter space

The bountdary  of space is known as  the  kaman line after  theodore von karman (usa b hun ) kaman realized that the altitubude  of 100km (62mi) above sea level  is the height  at  which  a vehicle would need to travel at faster than orbital velocity in order to gain enough aerodynamic life to sustain fight on 20 Jan 1944 a test fight of a german v-2 missile designed to strike  london uk reached an allude  of 174.6km (108.49mi).