Ruppia seeds, pollen, quartz: White Sands footprints at 23,000 years
Seeds of a water plant dated human footprints at White Sands, New Mexico, to 23,000 to 21,000 years; pollen, quartz and lake mud were tested against them.
· 21,000 BCThe Americas in the prehistory (before 3500 BC). Before writing, the record is stone, bone and DNA. These articles cover human origins, the ice ages and the first farmers, up to the moment cities and script appear.
Seeds of a water plant dated human footprints at White Sands, New Mexico, to 23,000 to 21,000 years; pollen, quartz and lake mud were tested against them.
· 21,000 BCA 2019 Science paper put people at Cooper's Ferry, Idaho, from 16,560 to 15,280 years ago. A 2020 comment, a 2022 reanalysis and two replies followed.
· 14,000 BCA camp under a Chilean bog, dated to about 14,500 years ago, put people in South America before the Clovis hunters. Later claims reach 23,000 years.
· 12,500 BCDried feces from an Oregon cave carried DNA a 2008 study dated to 12,300 radiocarbon years. Rebuttals, a 2012 recheck and a 2020 lipid study followed.
· 12,300 BCA 13,000-year-old mammoth kill, bison kill and camp in southeastern Arizona, sealed under black clay, and the fluted points that define Clovis.
· 11,000 BCA skull found in the Columbia River in 1996 led to a lawsuit, a 2015 genome study and a 2016 law that sent Kennewick Man to five tribes in 2017.
· 6500 BC