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.
There are two glaring issues in this section of text. The first is the parallel that Friedman draws between himself and Christopher Columbus by claiming that Columbus had to prove to his contemporaries that the world was round (while Friedman will prove that it is flat).