It's difficult to quantify, but I think there is a compelling argument to be made - just off of my head, WW2 led to:
- the fall of German autocracy/restoration of German democracy (though Hitler did kinda break that one in the first place)
- Italian and Japanese democracy
- redistribution of wealth/power in Britain
- the 4th french republic
- alignment of the European democracies
- establishment of the UN
I put my steel in the fridge and it's completely dried out now
Granted, it wasn't very wet when it went in