The Way Back Machine
We’ve covered the relation of R1b men to each other. We’re already back 5,000 years to common ancestor L151. For the next relationships contained in our surname project we must go back to haplogroup IJK. This is a hypothetical haplogroup marking a time before haplogroups I, J and K had emerged. These were the last to emerge from another hypothetical cluster HIJK.
As suggested by the graphic haplogroup K emerged first. Shortly after the emergence of L15 or M523. It’s still a long way from K-M9 to R1b and L151; about 40,000 years or so. Haplogroups I and J share a slightly closer relation. J-M304 emerged about 28,000bce while I-L758 emerged about 33,000bce.
Now we go way, way back. Our haplogroup E participants. Haplogroups R, I and J share a common ancestor with haplogroup E at CT-M168 about 64,000bce. R, I and J descend CF-P143 from about 63,000bce. E descends DE-M145 about 60,000bce. For those with European ancestry our roots begin in what FTDNA calls L1090, more commonly known as A0-T. The most recent common ancestor was about 152,000bce.
Much more detail could be added. This is the “cliff notes” version. Also the conclusion of 4 short synopsis to understand why we test SNP’s and how we employ the comparisons in genetic genealogy. A discovery test takes us from who we are now back to who we were then. Since we are genetically the sum of our combined ancestry, to know who we are is forever coupled to who we were.