This timeline of evolution of life represents the current scientific theory outlining
the major events during the development of life on planet Earth. In biology ...
This Earth timeline highlights some of the important events that have shaped our
world. The pages in the timeline contain interesting video clips from BBC ...
Humans have walked the Earth for 190,000 years, a mere blip in Earth's 4.5-
billion-year history. A lot has happened in that time. Earth formed and oxygen
Nov 19, 2015 ... VIDEO: If the history of Earth was on a timeline from Los Angeles to New York,
the American Revolution would have been fought 8 inches ago.
Time (Myr ago), Event. 4600, Formation of the approximately homogeneous solid
Earth by planetesimal accretion. 4300, Melting of the Earth due to radioactive ...
Jun 30, 2014 ... A photo timeline of Earth's 4.5 billion years of geologic history.
From fossil evidence, it appears that life may have existed on Earth as early as
3.5 billion years ago. This suggests that life must have evolved sometime during
Mar 13, 2013 ... The Earth's Timeline .... Timeline of World History: Pre-History-Meso-America. ...
Timeline of the Future - According to Science (2015 updated) ...
Jun 13, 2013 ... Ever wondered how long each Geological Era lasted? From the Dinosaur age to
where we are today, the Earth's history has been put into a ...
Jul 14, 2009 ... Find more intriguing facts in our evolution timeline. ... There are all sorts of ways
to reconstruct the history of life on Earth. Pinning down when ...