It’s an apocryphal Chinese curse: https://en.m.wikipedia.org/wiki/May_you_live_in_interesting_...

The phrase "may you live in interesting times" is the lowest in a trilogy of Chinese curses that continue "may you come to the attention of those in authority" and finish with "may the gods give you everything you ask for." I have no idea about its authenticity.

I read it first in the "Interesting Times" by Terry Pratchett. I don't know did he invented this phrase or borrowed it somewhere.