It wasn't always a myth. The legal definitions have changed over time and place, and scientific and social definitions varied. https://www.aph.gov.au/About_Par

It wasn't always a myth. The legal definitions have changed over time and place, and scientific and social definitions varied. https://www.aph.gov.au/About_Parliament/Parliamentary_Departments/Parliamentary_Library/Publications_Archive/CIB/cib0203/03Cib10#historicalcontext https://www.aph.gov.au/About_Parliament/Parliamentary_Depart...