In qarnigii 6aad ee BC, Anaximander soo jeediyay cosmology la Earth u eg qayb ka mid ah tiir (silinder ah), kor ku qabtay ee xarunta wax kasta. Sun, Moon, iyo meerayaasha ahaayeen godad in giraangiraha aan la arki karin ku wareegsan Earth; iyada oo godad, aadanaha arki kartaa dab qarsoon. About waqti isku mid ah, Pythagoras u maleeyeen in Earth ahaa sphere a (si waafaqsan aragtida eclipses), laakiin ma aaminsan yahay in xarunta; waxay aaminsan yihiin in ay ahayd in dhaqdhaqaaqa ku wareegsan dab aan la arki karin.
Aanaximander