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This project is a meeting place for users who share the I-P37 Y-DNA haplogroup, which means they are related along their paternal lines. Users in this group may want to share their family trees with each other to find overlaps and merge duplicate profiles in order to join or expand the World Family Tree and discover new relatives.

Haplogroup I dates to 23,000 years ago, or older.
The I-P215 lineage is about 15,000 years old and began in southern Europe.
Today it is found primarily in Sardinia and the Balkans.
Haplogroup I represents one of the first peoples in Europe

[http://scaledinnovation.com/gg/snpTracker.html?snp=I-L621&walk]

The I-P37.2+, also known as I2a1a (ISOGG 2019) (The subclade divergence for I-P37.2 occurred 10.7±4.8 thousand years ago.

The age of YSTR variation for the P37.2 subclade is 8.0±4.0 thousand years ago. It is the predominant version of I2 in Eastern Europe.

More history can be found at [https://www.eupedia.com/europe/Haplogroup_I2_Y-DNA.shtml#I2a1]

The I2a is further made up by sub-groups I-M26, I-M423, I-L1286, I-L880.

Full tree can be viewed at [https://www.familytreedna.com/public/y-dna-haplotree/I;name=I-P37]

Oldest men on Geni that carry the I-P37 Y-DNA marker

Huether Name Study
Proctor Name Study
Zimmermann Name Study, Baden-Württemberg, Germany