The pioneering work of British statistician Francis Galton in the late 1860s observing the relative ratios of ‘great men’ within the British populous would set the stage for modern statistical analysis.  His book, Hereditary Genius, tracked the intellectual ability within a set population while simultaneously recording the possible role of genetic transmission of intellectual ability.  Galton documented means and standard deviations within the population, as well as investigating regressions and correlations.  His work displayed the potential for proper data collection and advanced interpretation, and would be referenced in the subsequent development of statistical criteria.