Detailed Timeline
In this timeline, Ma (for megaannum) means "million years ago", ka means "thousand years ago", and ya means "years ago".
Read more about this topic: Timeline Of Evolutionary History Of Life
Famous quotes containing the word detailed:
“... every event has had its cause, and nothing, not the least wind that blows, is accident or causeless. To understand what happens now one must find the cause, which may be very long ago in its beginning, but is surely there, and therefore a knowledge of history as detailed as possible is essential if we are to comprehend the past and be prepared for the future.”
—Pearl S. Buck (1892–1973)