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): Doug Christie (lawyer) • Eilidh Whiteford • Eric Bogosian • Franco Leccese • Henry Wriothesley, 2nd Earl of Southampton • Lee Westwood • Lydia Ko • Marte Mjøs Persen • Nigel Harrison • Richard Holbrooke • Robert Penn Warren • Ruth Osburn • Thomas Lucy • Toomas Tohver • Willem de Kooning • William Joyce

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