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.
Johannes Kepler (1571-1630) Nominated by Michael Mosley, writer and presenter of Trust Me Iâm A Doctor. Kepler was the person who made sense of astronomy. He realised, following in the footsteps of Copernicus, that the Sun is not the dead centre of the Universe and that the planets go round in ellipses. He was a wonderful, weird character: incredibly short-sighted and yet he gazed at the stars.