Topper is an archaeological site located along the Savannah River in Allendale County, South Carolina, United States. It is noted as a location of controversial artifacts believed by some archaeologists to indicate human habitation of the New World earlier than the Clovis culture, who were previously believed to be the first people in North America. Artifacts at this site may predate Clovis by 3,000 years or more. The primary excavation has gone down to a level that dates to at least 50,000 B.C., searching for evidence of cultural artifacts. Until increasing challenges in the first decade of the 21st century to the Clovis theory based on this site and others, it was unusual for archaeologists to dig deeper than the layer of the Clovis culture, as they then believed that no human artifacts