You could say the honour perhaps should perhaps lie with either: Sputnik I, Sputnik II, Vostok I (or Wright Brothers/Kitty Hawk I guess) - but I would contend

You could say the honour perhaps should perhaps lie with either: Sputnik I, Sputnik II, Vostok I (or Wright Brothers/Kitty Hawk I guess) - but I would contend that in a few thousand years time (and the fall of a few more empires) - the Berlin Wall will lose it's significance