History of the Earth By metcalmo Jan 1, 2011 Solar system beginsto form (5 BYA) Solar system by accretion Jan 29, 2011 Formation of the Earth Dec 31, 2011 Lynn Margilus and endosymbiosis (1980s) Dec 31, 2011 First Microscope First microscope invented, allowing scientists to identify cells Dec 31, 2011 Urey & Miller's experiment (1900) Simulated early earth's atmosphere and the production of organic molecules
