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→Geological dating
== Geological dating ==
== Geological dating ==
Based on [[geology|geological]] dating methods and their inherent assumptions, however, secular scientific research dates the formation of the Earth to around 4.5 [[billion]] (4.5 * 10<sup>9</sup>) years ago.<ref>[http://pubs.usgs.gov/gip/geotime/age.html USGS, ''Geologic Time: Age of the Earth.''] Accessed April 18, 2007.</ref> And according to the [[Big Bang Theory|Big Bang theory]], the universe began even earlier, about 13.7 billion years ago.
Based on [[geology|geological]] dating methods and their inherent controversial assumptions, however, secular scientific research dates the formation of the Earth to around 4.5 [[billion]] (4.5 * 10<sup>9</sup>) years ago.<ref>[http://pubs.usgs.gov/gip/geotime/age.html USGS, ''Geologic Time: Age of the Earth.''] Accessed April 18, 2007.</ref> And according to the [[Big Bang Theory|Big Bang theory]], the universe began even earlier, about 13.7 billion years ago.
== Notes ==
== Notes ==