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.
The idea that medieval people thought the earth was flat appears to have spread in the late nineteenth century as a stick with which to beat the medieval Christian church, which is often blamed for restricting intellectual growth in the period.