+**D1b** is a human [Y-DNA](/wiki/Y-DNA) [haplogroup](/wiki/Haplogroup), a genetic marker used to trace patrilineal descent. Primarily found in populations of Japan, it speaks of ancient journeys and ancestral connections, offering a whisper of history from the male line.
+## See also
+- [Y Chromosome](/wiki/Y_Chromosome)
+- [Genetics](/wiki/Genetics)
+- [Human Migration](/wiki/Human_Migration)
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