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.
Confidence votes 3.8K. because people believed that the world was flat and he wanted to see if that was true Answer. The above answer is incorrect. By the time of Francis Drake (1540-1596) Christiopher Columbus (1451-1506) had already discovered the Americas and Vasco da Gama (1469-1524) had sailed around the world. People already knew the world was not flat.