Thanks for the summary, particularly listing the 11 'branch lines.' Reading this narrative while looking at your updated (January 1, 2012) I Tree along with the related I1 M253 Tree and 'Conjectured Spread of Haplogroup I' map are very useful in absorbing (and refreshing) what there is to know about Haplogroup I as 2012 dawns. -- Gene Prescott Greenville, NC C. Eugene Prescott, CPA web/blogsite: http://taxtechcpa.blogspot.com/ There is always something new!