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OSL (optically stimulated luminescence) dates on soils above ice age strata show pre-Clovis is at least older than 14,000.May 2002 — Geologists find new profile showing ancient soil lying between Clovis and pre-Clovis, confirming the age of ice age soils between 16,000 - 20,000 years.Using a backhoe and hand excavations, Goodyear's team dug through the Pleistocene terrace soil, some 4 meters below the ground surface.Goodyear found a number of artifacts similar to the pre-Clovis forms he has excavated in recent years.May 2000 — Geology study done by consultants; ice age soil confirmed for pre-Clovis artifacts.
"Fifty-thousand should be a minimum age since there may be little detectable activity left." The dawn of modern homo sapiens occurred in Africa between 60,000 and 80,000 years ago.
November 2004 — Radiocarbon dating report indicates that artifacts excavated from Pleistocene terrace in May were recovered from soil that dates some 50,000 years. GOODYEAR III University of South Carolina archaeologist Albert C.
The dates imply an even earlier arrival for humans in this hemisphere than previously believed, well before the last ice age. Goodyear joined the South Carolina Institute of Archaeology and Anthropology in1974 and has been associated with the Research Division since 1976.
For five years, Goodyear continued to add artifacts and evidence that a pre-Clovis people existed, slowly eroding the long-held theory by archaeologists that man arrived in North America around 13,000 years ago.
Last May, Goodyear dug even deeper to see whether man's existence extended further back in time.