A National Look at the Use of Congregate Care in Child Welfare. congregate care.
The idea of a spherical Earth appeared in Greek philosophy with Pythagoras (6th century BC), although most pre-Socratics (6th â 5th century BC) retained the flat Earth model. Aristotle provided evidence for the spherical shape of the Earth on empirical grounds by around 330 BC.
In a 1991 book, âInventing the Flat Earth,â retired University of California professor Jeffrey Burton Russell explains how the myth was perpetuated in the 1800s by writers including Washington Irving and Antoinne-Jean Letronne.