500 million years ago
From Multiversal Omnipedia
Revision as of 22:13, 1 March 2007 by 68.54.171.237 (Talk)
Events
Real World 488 million years ago. Beginning of Ordovician Period. A mass extinction at the end of this period wipes out 60% of marine life on Earth.
Real World 443 million years ago. Beginning of Silurian Period. First land plants on Earth.
Real World 416 million years ago. Beginning of Devonian Period. The first land animals appear, including amphibians and insects, on Earth.
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