What is the "Cosmic Calendar", and approximately where do major events like the formation of the Milky Way, the formation of the Solar System. and the appearance of modern humans fall on it? - 物理 Solution | KnowBuddy | KnowBuddy - Best AI Homework Helper for All Subjects

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What is the "Cosmic Calendar", and approximately where do major events like the
formation of the Milky Way, the formation of the Solar System. and the appearance of
modern humans fall on it?