I remember hearing about a story in which an Italian King (hundreds of years ago) drew a circle and randomly threw bread behind his shoulder, and calculated the percent of bread that landed inside the circle vs outside the circle. Supposedly this was an early attempt to estimation pi.
I tried look for this story online, and the closest thing I could find was "Buffon's Needle", which pi can be estimated by randomly dropping needles on to an a rectangular surface marked with rectangular tiles:
https://en.m.wikipedia.org/wiki/Buffon%27s_needle_problem
https://mathworld.wolfram.com/BuffonsNeedleProblem.html
Does anyone have a reference for the "Bread throwing story"?
Thanks!