Taken from 23andme
John is part of a paternal line that scientists have labeled haplogroup H. The map below shows where people of haplogroup H lived around 500 years ago, before modern transportation allowed people to easily move from continent to continent.
Haplogroup H arose in India between 30,000 and 40,000 years ago, likely in the eastern part of the subcontinent. Today it reaches levels of up to 90% among some isolated tribal populations on the subcontinent. H is also found in regions that have historical ties to India, such as Bali and Cambodia, and the Roma, or Gypsies.
Age: 40,000 years
Region: South Asia
Populations: Indians, Sri Lankans, Roma
Highlight: Haplogroup H is primarily found in India, though it can also be found in peoples who share history with India, such as the Roma.
John's Ancestral History
Haplogroup H originated in India about 30,000 to 40,000 years ago. It remains common there today, especially in the southeastern coastal state of Andhra Pradesh. It is almost unknown outside of India, with one significant exception – haplogroup H is found at levels of nearly 50% among the Roma, or Gypsies, who arrived in southern and eastern Europe during the Middle Ages but have now emigrated to various parts of the world.
Along with the similarity of the Romani language to languages of India, the presence of haplogroup H among the Roma supports the contention that the ethnic group originated on the Indian subcontinent.
While far more rare, Haplogroup H expanded to the east as well. The haplogroup can be found in two different places with historical ties to India: Bali and Cambodia. While more rare, both regions adopted Indian religion and culture, along with Y chromosomes. Today, Bali is the one island in Indonesia that remains largely Hindu, and the historical legacy of Hinduism in Cambodia can be seen in such famous temples as Angkor Wat.