bill of deaths 1634
probability: Pascal, Fermat 17th c.
bar graph, pie, line chart: Playfair 1780s
"statistics": Sinclair 1798
factorial !: Kramp 1808
ordinal: Mohs 1822
normal distribution EQ: Laplace, Gauss
L'homme moyen: Quetelet 1835
median: Gauss, then Galton 1874
normal curve: Gauss, then Pearson, Lexis, Sanders late 19th c.
correlation coefficient: Galton 1880s
histogram: Pearson 1891
standard deviation, coefficient of variation: Pearson 1893
mode: Pearson 1894
nominal: Pearson 1899
hypothesis testing, p-value: Pearson 1900
chi-squared GOF: Pearson 1900
PCA: Pearson 1901
Poisson re-discovered: Gosset 1907
t-distribution, t tests: Gosset 1907
ANOVA: Fisher 1920
chi-squared distributions: Fisher 1920s
interval vs. ratio: Stevens 1947
