I just plugged a 110v Xbox 360 power adapter into a 220v outlet in Europe. Is it mostly likely destroyed?

Technically, for a non surge protected strip, you can, if your appliances are 240V ready. You will need an adapter (probably a grounded one) rated for 15 amps. I would not connect heating type appliances through a power strip, at least over 1000W.

Yes, 110V power strip can be used on 220V power source with the same protection.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.