Someone needs to fix the wiki, if that is still in there.
Deflationary currencies worked for all of human history. It's inflationary currencies which haven't worked; every time they have been introduced, the result has been economic chaos.
One could argue that deflationary currencies didn't work for most of human history, resulted in plutocracies, and when inflationary currencies were introduced they resulted in great economic booms, globalization, and a great reduction in world-wide poverty

One could argue such, but one could not come up with any supporting evidence.