The world has never been more prosperous or peaceful than it is right now.
LOL Yes, crime has been virtually eliminated, along with wars and brutal dictatorships. I am also glad that there aren't Muslim terrorists worldwide causing an enormous loss of life and destabilizing many countries.
The part of your statement about prosperity, I can agree with. Peaceful, though? Even relatively speaking... sell it to someone else, cause I'm not buying it.
For a sliver of how peaceful things are, see below: