Draft:Kya to bc

Middle Paleolithic



 * 320 kya - 305 kya: Populations at Olorgesailie in Southern Kenya undergo technological improvements in tool making and engage in long-distance trade.
 * 315 kya: Approximate date of appearance of Homo sapiens (Jebel Irhoud, Morocco).
 * 270 kya: Age of Y-DNA haplogroup A00 ("Y-chromosomal Adam").
 * 250 kya: First appearance of Homo neanderthalensis (Saccopastore skulls).
 * 230 kya: Latest proposed date for the Terra Amata site, home of the first confirmed purpose-built structure and probably made by Homo heidelbergensis.


 * 230 kya - 150 kya: Age of mt-DNA haplogroup L ("Mitochondrial Eve").
 * 210 kya: Modern human presence in southeast Europe (Apidima, Greece).
 * 200 kya: Oldest known grass bedding, including insect-repellent plants and ash layers beneath (possibly for a dirt-free, insulated base and to keep away arthropods).
 * 195 kya: Omo remains (Ethiopia).
 * 194 kya - 177 kya: Modern human presence in West Asia (Misliya cave in Israel).
 * 170 kya: Humans are wearing clothing by this date.
 * 164 kya: Humans diet expands to include marine resources
 * 160 kya: Homo sapiens idaltu.
 * 150 kya: Peopling of Africa: Khoisanid separation, age of mtDNA haplogroup L0.
 * 130 kya: Oldest evidence of ancient seafaring, from Crete (an island isolated from land for millions of years prior to human arrival).
 * 125 kya: The peak of the Eemian interglacial period.
 * 120 kya: Possibly the earliest evidence of use of symbols etched onto bone.
 * 120 kya: Use of marine shells for personal decoration by humans, including Neandertals.
 * 120 kya - 90 kya: Abbassia Pluvial in North Africa—the Sahara desert region is wet and fertile.
 * 120 kya - 75 kya: Khoisanid back-migration from Southern Africa to East Africa.
 * 100 kya: Earliest structures in the world (sandstone blocks set in a semi-circle with an oval foundation) built in Egypt close to Wadi Halfa near the modern border with Sudan.
 * 80 kya - 70 kya: Recent African origin: separation of sub-Saharan Africans and non-Africans.
 * 75 kya: Toba Volcano supereruption that may have contributed to human populations being lowered to about 15,000 people.
 * 70 kya: Earliest example of abstract art or symbolic art from Blombos Cave, South Africa—stones engraved with grid or cross-hatch patterns.