17. Putting bills in the microwave for about 20 seconds will make them crispy again. 18. The largest denomination ever printed was in Hungary in 1946, worth 100 quintillion pengoes. 19. The word “salary” comes from sal, meaning “salt” in Latin. Early Romans used salt as money. 20. The world’s worst inflation is in Zimbabwe. There was a 6.5 sextillion percent inflation rate in 2008.