Geocentric model knew about Tusi's work or that of the Maragha school. Not all Greeks agreed with the geocentric model. The Pythagorean system has already been mentioned; some Pythagoreans believed the Earth to be one of several planets going around a central fire. Hicetas and Ecphantus, two Pythagoreans of the 5th century BC, and Heraclides Ponticus in the 4th century BC, believed that the Earth rotated on its axis but remained at the center of the universe. Such a system still qualifies as geocentric. It was revived in the Middle Ages by Jean Buridan. Heraclides Ponticus was once thought to have proposed
First term of Fernando Chui as Chief Executive of Macau First term of Fernando Chui as Chief Executive of Macau The First term of Fernando Chui Sai On as Chief Executive of Macau, officially considered part of "The 3rd term Chief Executive of Macau", relates to the period of governance of Macau since the transfer of sovereignty of Macau, between 20 December 2009 and 20 December 2014. Fernando Chui Sai On was elected in mid 2009 by 300-member Selection Committee as the second Chief Executive of Macau. The policy bureaux were under several reorganisations during the term as following: The Executive Council was presided by President Fernando Chui Sai On