Crayola’s Law posted in Culture / Read in Estimated reading time: 0 minutes Less than a minute / on January 21, 2010 / by Nathan Campbell / SHARE Tweet Where do they get the colours from? Who knows. But since the history of crayons Crayola’s colour range has doubled every 28 years. From here, via here. Leave a comment:  Tweet Follow @nm_campbell PREVIOUS POST← The bread of life NEXT POSTKnow where you stand when you fall → 1 Comment → Crayola’s Law queenstuss January 21, 2010 at 9:13 am The great thing about being a parent is that you get to relive your childhood through awesome toys like Crayola crayons. Comments are closed.