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.
he was familiar with the Greek theory of a spherical earth, nevertheless, (following in the footsteps of his fellow North African, Lactantius), he was firmly convinced that the earth was flat, was one of the two biggest bodies in existence and that it lay at the bottom of the universe.