John Graunt

John Graunt has been regarded as the founder of demography. Graunt was one of the first demographers, and perhaps the first epidemiologist, though by profession he was a haberdasher. He was bankrupted later in life by losses suffered during Great Fire of London and the discrimination he faced following his conversion to Catholicism. ^{John Graunt, English demographer and statistician (d. 1674)}

24 April 1620

Born on the same birth day (24 April): Carlos Beltrán • David Crombie • Dino Rađa • Dr. Rajkumar • Eddie Hart (sprinter) • Frédéric Niemeyer • Gabriel Figueroa • Gideon Sundback • Gordon West • Jayakanthan • Jerry Jeudy • Johnny Griffin • José Sarney • Laura Kenny • Mike Rodgers • Paul Cellucci • Philippe Pétain • Ramiro II of Aragon • Willem de Kooning

Born in the same month (April 1620): Marguerite Bourgeoys