Page 187 - Probability Demystified

176 CHAPTER 9 The Normal Distribution

Sir Francis Galton in 1889 invented a device that he called a ‘‘Quincunx.’’
This device dropped beads through a series of pegs into slots whose heights
resulted in a bell-shaped graph. It wasn’t until 1924 that Karl Pearson
found that de Moivre had discovered the formula for the normal distribution
curve long before Laplace or Gauss.