Y-Haplogroups I1 and R1b in European Countries, plus Ancient Migrations within Europe

A concise summary of some of the ancient migrations of the people within Europe is given for general interest, and also to put into historical context TMRCA’s and the various “Frequency by Region” plots.

This report compiles various sources of y-Haplogroup data for the common y-Haplogroups in Europe, and presents them in tables showing their frequency distribution for each region (or country) of Europe. In the case of I1, the proposed I1 STR clusters/clans are presented in the same style of table.

Previously known east-to-west increasing frequency trends can be seen for y-Haplogroup R1b, which has been suggested as being related to the expansion of farming from the Near East into Europe during the Neolithic (from 7,000 BC to 4,000 BC) and the subsequent interaction with the indigenous hunter-gatherers of Europe at the time.

In the case of y-Haplogroup I1, whose MRCA may have existed after, or near the end of, the transition from hunting-gathering to farming in Europe, there is a south-to-north increasing frequency trend. The following more recent (as of say ~200 years ago) geographical frequency distributions are of note for the I1 STR clusters/clans:

Y-Haplogroups I1 and R1b in European Countries, plus Ancient Migrations within Europe