The project is open to all confirmed or potential members of the R1a-S18681 clade (including the slightly older YP311). We encourage you to order the Family Finder test, which will determine the approximate haplogroup within R1a-S18681 (e.g. YP331). For more accurate classification within the S18681 clade, we suggest ordering the Big Y-700 test, which will precisely determine the location of your family on the genetic tree, as well as determine real relationships with other families. Like us on Facebook: https://www.facebook.com/R1aS18681/ See ohttps://www.googur map with all subclades under R1a-S18681: https://www.google.com/maps/d/u/0/edit?mid=1Wev1XRrmyzQl5v12SRiIp8hmqK8&hl=pl&ll=45.39848965051399%2C-13.817062475000007&z=3&fbclid=IwZXh0bgNhZW0CMTEAAR32vy8_7nRCLNPxGfQYZ8pUHbH5jQB0eTs_YxGw7gL2RY0WA-487d9EDG8_aem_AceCTDljMuGqYo4i6kjw14t0otWiebx_lI2cKJXX_hLbJKJKFI9uQSxOthHraNJg-rrN258dda5ZsrC-_JAUUauy Admin of R1a-S18681 Project: Łukasz Maurycy Stanaszek, Ph. D. Head of Anthropological Laboratory, State Archaeological Museum, Warsaw (Poland); belongs to R1a-S18681 (subclade YP1363>BY24952>BY50754).