The Windover bog cemetery was discovered in 1982 when a backhoe operator discovered human bones whilst digging in black peat from the bottom of a pond. DNA testing of the first sample piece showed an age of 7,330 years, plus or minus 100 years, and the second showed an age of 7210 years, plus or minus 100 years. DNA samples prove the bodies to be of European origin. Separate DNA studies corroborate European migrations to the Americas in 7000B.C. – notably the research by Maere Reidla regarding the X2 haplotype.
Further reading:
Brown, M. D., et al. “mtDNA Haplogroup X: An Ancient Link Between Europe/Western Asia and America?” American Journal of Human Genetics 63, no. 6 (1998): 1852–61. http://www.ncbi.nlm.nih.gov/pubmed/9837837
“The First Americans—Part 6—DNA of the Windover Bog People.” http://www.youtube.com/watch?v=vbayBEbIEwc
Ice Age Columbus. Discovery Channel, 2005 – http://www.youtube.com/watch?v=maziRFPYU14
Reidla, Maera, et al. “Origin and Diffusion of mtDNA Haplogroup X.” American Journal of Human Genetics 73, no. 5 (2003): 1178–90 – http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1180497/
Schurr, Thomas G. “Mitochondrial DNA and the Peopling of the New World.” American Scientist 88 (2000): 246–53 – http://www.sas.upenn.edu/~tgschurr/pdf/Am%20Sci%20Article%202000.pdf
Stone Age Columbus. BBC 4, 2002, – http://vimeo.com/33522780
“Stone Age Sailors Beat Columbus to America.” Observer, November 28, 1999 – http://bit.ly/19TBoLh