I'm not sure if this constitutes as "important" but I thought it was pretty cool:
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A human skull dated to about 2,684 years ago with an "exceptionally preserved" human brain still inside of it was recently discovered in a waterlogged U.K. pit
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Quote:
Laser imaging, chemical analysis and other examinations revealed that the brain naturally preserved over the millennia. The scientists found no evidence for bacterial or fungal activity, and described the tissue as being "odorless…with a resilient, tofu-like texture."
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http://news.discovery.com/history/pr...nd-110406.html