Estimates of its time depth have varied greatly, at either close to 190 kya or close to 140 kya in separate 2013 studies, and with the inclusion of the previously unknown "A00" haplogroup to about 270 kya in 2015 studies.
The age of this event has been subject to significant debate, with estimates ranging from roughly 190,000 years ago to about 140,000 years ago. The inclusion of the "A00" haplogroup in 2015 studies further refined these estimations, suggesting an age of approximately 270,000 years ago.