After the discovery of several Clovis sites in western North America in the 1930s, the Clovis people came to be regarded as the first human inhabitants of the New World. Clovis people were thought to be the ancestors of all the indigenous cultures of North and South America. However, this view has been contested over the last thirty years by several archaeological discoveries, including sites like Cactus Hill in Virginia, Paisley Caves in the Summer Lake Basin of Oregon, the Topper site in Allendale County, South Carolina, Meadowcroft Rockshelter in Pennsylvania, and the Monte Verde and Cueva Fell sites in Chile.