What is the Out of India Theory?

Question

Someone said that it has to do with Indians coming to Europe, does that mean Europeans are descendants of Indians?

Answer 1

I don't believe it.  All people originated in Africa (in East Africa--like Ethiopia-Eritrea, Somalia, Kenyan, Sudan). Then those populations spread through out Africa, and changed with diet and climate. And after that, some African tribes left West Africa (the Togo and Benin areas, and Nigeria and other parts along the West African coast) and populated the world.

Here are some articles, scientifically and historically sound . With research, to support the Out of West Africa migration theory.

Here is the article about West Africa/ Euro gene pool.

"West African roots found in white Brits' genes

27 January 2007

From New Scientist Print Edition. Subscribe and get 4 free issues.

RACISTS won't like it, but some white-skinned Englishmen are descended from black Africans who came to Britain anything from 300 to 1800 years ago. Geneticists at the University of Leicester, UK, made the discovery by studying links between the DNA of 2500 British men and their surnames.

One man with an unusual surname stood out because his Y chromosome carried a gene variant called hgA1 previously found only in 28 black Africans. "He just looks like your average English white guy," says Turi King, who carried out the study, to be published in the European Journal of Human Genetics.

King traced a further 18 people with the same surname and found six had the hgA1 variant. None was black. She concludes that black people lived in Britain in far more significant numbers far earlier than the first modern wave of immigration in the 1950s.

“Black people lived in Britain in significant numbers far earlier than the 1950s”"This study further debunks the idea that there are simple and distinct populations, or 'races'," says co-author Mark Jobling.

(The rest of the article is at the link @ newscientist.org).

And here is another article on how Europeans are descended from West Africans. It's well researched and from the BBC.

"Yorkshire clan linked to Africa

The connection was found to date back many generations

People of African origin have lived in Britain for centuries, according to genetic evidence.

A Leicester University study found that seven men with a rare Yorkshire surname carry a genetic signature previously found only in people of African origin.

The men seem to have shared a common ancestor in the 18th Century, but the African DNA lineage they carry may have reached Britain centuries earlier.

Details of the study appear in the European Journal of Human Genetics.

The scientists declined to disclose the men's surname in order to protect their anonymity.

The discovery came out of genetic work looking at the relationship between the male, or Y, chromosome and surnames.

The Y chromosome is a package of genetic material normally found only in males.

It is passed down from father to son, more or less unchanged, just like a surname.

Rare lineage

But over time, the Y chromosome accumulates small changes in its DNA sequence, allowing scientists to study the relationships between different male lineages.

Y chromosomes can be classified into different groups (called haplogroups) which, to some extent, reflect a person's geographical ancestry.

Certain haplogroups might be very common in, for example, East Asia and very rare in Europe.

By chance, the researchers discovered a white man with a rare Yorkshire surname carrying a Y chromosome haplogroup that had previously been found only in West African men. And even there, it is relatively uncommon.

"We found that he was in haplogroup A1, which is highly West African-specific," said Turi King, a co-author on the study at the University of Leicester.

"It is incredibly rare, there are only 25 other people known worldwide and they are all African."

Family tree

The individual had no knowledge of any African heritage in his family.

Sharing a surname also significantly raised the likelihood of sharing the same type of Y chromosome, with the link getting stronger as the surname gets rarer.

Analysis of Thomas Jefferson's DNA also threw up a surprise

So the researchers started recruiting people with the same last name, which starts with "R" and originates in Yorkshire.

Of 18 people they tested, seven carried the rare African haplogroup.

Turi King and Leicester colleague Mark Jobling then commissioned a genealogist to fit the men into a family tree to see how they were related and find clues about where exactly their unusual Y haplogroup came from.

"He could only get them into two trees, one which dates back to 1788 and the other to 1789. He couldn't go back any further. So it's likely they join up in the early 18th Century," said Turi King.

The majority of the one million people who define themselves as "black" or "black British" trace their origins to immigration from the Caribbean or Africa from the middle of the 20th Century onwards.

Prior to the 20th Century, there have been various routes by which people of African ancestry might have reached Britain. For example, the Romans recruited from Africa and elsewhere for the garrison that guarded Hadrian's Wall.

Different routes

Another major route was through the slave trade.

"Some of the Africans who arrived in Britain through the slave trade rose quite high up in society, and we know they married with the rest of the population," said Ms King.

"It could be either of these two routes," she said. Even if the two family trees link up in the 18th Century, haplogroup A1 could have reached Britain long before that.

"But my guess is that, because many slaves came from West Africa, it could have been through that ro

Source(s):

http://india.gov.in/knowindia/ancient_hi...

http://www.newscientist.com/channel/bein...

http://news.bbc.co.uk/2/hi/science/natur...

Answer 2

I believe it has do with what you mentioned. To some it has to do with the Indo-European language starting in India and then spreading to the Europe where on the other hand it is believed that Sanskrit was brought from Europe by Aryans to India.

Answer 3

I have never heard of it.

Language spreads through interactions with people, not by marrying and having children with people.

In school when  taking a foreign language, does that mean marrying and having children with a person who speaks that language, and then passing it on to many generations?

If that were the case then people who were tri-lingual would have to have been married 3 times, and have three sets of children. Sounds tiring.

Answer 4

This is your big chance!

If you came up with one, you can patent it...