-610 – -546
Anaximander of Miletus was a Pre-Socratic Greek philosopher and a student of Thales, regarded as one of the earliest natural philosophers in the Western tradition. He proposed the apeiron (the boundless or infinite) as the fundamental principle underlying all existence, and made pioneering contributions to cosmology, geography, and natural science.
Introduced the concept of the apeiron (the boundless) as the arche or first principle of reality
Created one of the earliest known maps of the world
Proposed an early evolutionary theory suggesting humans descended from fish-like creatures
Developed a cosmological model in which the Earth floats unsupported at the center of the universe
Authored 'On Nature,' one of the first known philosophical prose works