The R-P278 haplogroup project is open to all people with haplogroup R-P278 and its subclades. R-P278 represents a man who lived around 200 BC. Currently, there are more than 500 people with haplogroup R-P278 or its descendants in the Family Tree DNA database, with ancestors coming mainly from Czechia, Poland, and other central-European countries. Tree of the R-P278 haplogroup: http://www.mpilar.cz/gg/R-P278