While originally considered to be a 20th-century immigrant, a more complete analysis has shown that this haplotype has been present in Iceland for at least 300 years and is distinct from other C1 lineages.
Mens man oprindeligt troede at det kom fra en immigrant fra 1900-tallet, har mere komplette analyser vist, at denne haplotype har været på Island i mindst 300 år, og er særegnet for andre C1-linjer.