here's a thread, like this thread from 2010 to tell your best, worst, scariest or funniest moments in survival in versions between indev 0.31 - beta 1.9 prerelease 6. it's okay if you never played the old versions originally, i never got a chance to so i play them through betacraft.
best moment: in beta 1.8.1, i was overlooking my awesome ethoslab-inspired base that i had spent tons of effort on.
worst moment: i fell into lava and died while emulating alpha v1.1.1. (no i don't have the original version on my PC which is lost, i was just emulating it with a mod LOL)
scariest moment: before i got betacraft, i had to emulate my old minecraft experiences with the old days mod. i was playing on a newly-generated alpha v1.0.1 world, and i was standing outside my little hidey hole during the day, then i accidentally pressed G. due to the mobs allowed being set to "indev" i spawned a human mob and it started attacking me... oh well.
funniest moment: anything involving me blowing up tons of useless things with TNT.
credit to the now-inactive Menen for the original thread idea.