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Gene Study Supports Single Main Migration Across Bering Strait
Eureka Alert ^ | 11-26-2007 | Anne Rueter

Posted on 11/26/2007 4:13:41 PM PST by blam

Contact: Anne Rueter
arueter@umich.edu
734-764-2220
University of Michigan Health System
11-26-2007

Gene study supports single main migration across Bering Strait

Siberians and Native Americans share unique genetic variant

The U-M study, which analyzed genetic data from 29 Native American populations, suggests a Siberian origin is much more likely than a South Asian or Polynesian origin.

Did a relatively small number of people from Siberia who trekked across a Bering Strait land bridge some 12,000 years ago give rise to the native peoples of North and South America?

Or did the ancestors of today’s native peoples come from other parts of Asia or Polynesia, arriving multiple times at several places on the two continents, by sea as well as by land, in successive migrations that began as early as 30,000 years ago?

The questions – featured on magazine covers and TV specials – have agitated anthropologists, archaeologists and others for decades.

University of Michigan scientists, working with an international team of geneticists and anthropologists, have produced new genetic evidence that’s likely to hearten proponents of the land bridge theory. The study, published online in PLoS Genetics, is one of the most comprehensive analyses so far among efforts to use genetic data to shed light on the topic.

The researchers examined genetic variation at 678 key locations or markers in the DNA of present-day members of 29 Native American populations across North, Central and South America. They also analyzed data from two Siberian groups. The analysis shows:

o genetic diversity, as well as genetic similarity to the Siberian groups, decreases the farther a native population is from the Bering Strait – adding to existing archaeological and genetic evidence that the ancestors of native North and South Americans came by the northwest route.

o a unique genetic variant is widespread in Native Americans across both American continents – suggesting that the first humans in the Americas came in a single migration or multiple waves from a single source, not in waves of migrations from different sources. The variant, which is not part of a gene and has no biological function, has not been found in genetic studies of people elsewhere in the world except eastern Siberia.

The researchers say the variant likely occurred shortly prior to migration to the Americas, or immediately afterwards.

“We have reasonably clear genetic evidence that the most likely candidate for the source of Native American populations is somewhere in east Asia,” says Noah A. Rosenberg, Ph.D., assistant professor of human genetics and assistant research professor of bioinformatics at the Center for Computational Medicine and Biology at the U-M Medical School and assistant research professor at the U-M Life Sciences Institute.

“If there were a large number of migrations, and most of the source groups didn’t have the variant, then we would not see the widespread presence of the mutation in the Americas,” he says.

Rosenberg has previously studied the same set of 678 genetic markers used in the new study in 50 populations around the world, to learn which populations are genetically similar and what migration patterns might explain the similarities. For North and South America, the current research breaks new ground by looking at a large number of native populations using a large number of markers.

The pattern the research uncovered – that as the founding populations moved south from the Bering Strait, genetic diversity declined – is what one would expect when migration is relatively recent, says Mattias Jakobsson, Ph.D., co-first author of the paper and a post-doctoral fellow in human genetics at the U-M Medical School and the U-M Center for Computational Medicine and Biology. There has not been time yet for mutations that typically occur over longer periods to diversify the gene pool.

In addition, the study’s findings hint at supporting evidence for scholars who believe early inhabitants followed the coasts to spread south into South America, rather than moving in waves across the interior.

“Assuming a migration route along the coast provides a slightly better fit with the pattern we see in genetic diversity,” Rosenberg says.

The study also found that:

Populations in the Andes and Central America showed genetic similarities.

Populations from western South America showed more genetic variation than populations from eastern South America.

Among closely related populations, the ones more similar linguistically were also more similar genetically.


TOPICS: News/Current Events
KEYWORDS: bering; beringstrait; cherrypicked; fossilsinacademe; gene; genetics; gigo; godsgravesglyphs; helixmakemineadouble; migration; siberia; yakut
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Thanks to Pharmboy for the article.
1 posted on 11/26/2007 4:13:45 PM PST by blam
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To: SunkenCiv; Coyoteman

GGG Ping.


2 posted on 11/26/2007 4:14:14 PM PST by blam (Secure the border and enforce the law)
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To: blam

These immigrants had boats. Walking from Alaska to anywhere south would have been near impossible.


3 posted on 11/26/2007 4:15:45 PM PST by RightWhale (anti-razors are pro-life)
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To: AdmSmith; AnalogReigns; Cacique; caryatid; Celtjew Libertarian; CobaltBlue; concentric circles; ...
Genetic
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4 posted on 11/26/2007 4:15:54 PM PST by martin_fierro (< |:)~)
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To: blam

Proving something EVERY Minnesotan knows...they were just trying to get the heck out of Syberia ASAP...they were FREEZING!


5 posted on 11/26/2007 4:17:34 PM PST by NordP (Such tough choices ahead, I'm now a "middle of the road" voter--somewhere between RUSH & Savage ;-))
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To: blam
Interesting how the "reverse migration" thesis (where folks already in North America move across the Berring landbridge to Siberia) can come into play to highlight the handful of serious differences available to workwith.

Whoops, these guys didn't consider the "reverse migration" thesis. Must mean these fellows don't want it to be thought that early Americans knew how to build boats.

Well, one step forward and two steps back.

6 posted on 11/26/2007 4:19:40 PM PST by muawiyah
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To: blam
I’d be curious to know how they went about selecting “native” populations. Did they go deep into the mountains and amazon jungles looking for relatively untouched tribes? The native Americans in the US and Mexico are so interbred with Europeans I would imagine that it would be difficult to obtain pure “native” DNA in these regions.
7 posted on 11/26/2007 4:21:53 PM PST by ElkGroveDan (If Rudy's an influential conservative, then I'm an award winning concert pianist.)
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To: RightWhale
I’ve always wondered why it is presented that one distinct population did what no one else ever did when coming to North America - that of walking, vs coastal boats or sailing like everyone else did.

Must be some huge investment in the land bridge theory that they just don’t want to let go of. Considering that you’ve got some of the richest waters for sea life off the coast, it’d take a truly dedicated hunter to chase after mammoths or whatever the excuse is this week.

8 posted on 11/26/2007 4:28:07 PM PST by kingu (No, I don't use sarcasm tags - it confuses people.)
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To: ElkGroveDan

They wouldn’t need to. But the study seems to greatly discount the Polynesian contribution which has a lot of reference to SA language, etc.


9 posted on 11/26/2007 4:29:36 PM PST by Eric in the Ozarks (Go Hawks !)
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To: Eric in the Ozarks
They wouldn’t need to.

I believe they would. A whole lot of European genes would mess up this study.

10 posted on 11/26/2007 4:35:06 PM PST by ElkGroveDan (If Rudy's an influential conservative, then I'm an award winning concert pianist.)
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To: ElkGroveDan
I’d be curious to know how they went about selecting “native” populations. Did they go deep into the mountains and amazon jungles looking for relatively untouched tribes? The native Americans in the US and Mexico are so interbred with Europeans I would imagine that it would be difficult to obtain pure “native” DNA in these regions.

Mitochondrial DNA is passed unchanged (except for occasional mutations) from mother to children. Mixing with Europeans would either retain the original Native American mtDNA (European male, Native American mother), or retain the European mtDNA (Native American male, European mother). There would be no intermediate mtDNA formed.

And those occasional mutations? That is what this study focused on to track the population movements.

11 posted on 11/26/2007 4:36:28 PM PST by Coyoteman (Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.)
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To: Eric in the Ozarks
And again, as a former Minnesotan, I would greatly applaud the Polynesian contribution---those that had sense enough to settle in tropical paradises ;-) NordP
12 posted on 11/26/2007 4:36:32 PM PST by NordP (Such tough choices ahead, I'm now a "middle of the road" voter--somewhere between RUSH & Savage ;-))
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To: blam
Thanks for the ping, Blam--I tried to find the original article but it must not be in the search engines yet.

This complements the Tamm et al. (2007) article that came out a couple of months ago.

13 posted on 11/26/2007 4:37:49 PM PST by Coyoteman (Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.)
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To: Coyoteman
I understand how mitochondrial DNA works. If you are testing for external influences in a person's genetic profile, mixing in a population who had external genetic contributions 300 years ago confuses the question of whether such influences were or were not also introduced 3000 years ago.

I used Europeans as an example but what about Polynesians who may have emigrated to America in the 1700s aboard commercial ships? What if they had children with native Americans or native Mexicans in the colonial period? Testing their descendants for the influence of external DNA would be most problematic.

I believe this is a valid study, but I also believe that some sort of precautions would need to have been taken to obtain genetically pure native DNA.

14 posted on 11/26/2007 4:44:46 PM PST by ElkGroveDan (If Rudy's an influential conservative, then I'm an award winning concert pianist.)
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To: ElkGroveDan

They wouldn’t need to have a pure sample to find the code. For the same reason, the Welsh are found to have first appeared in what is now Hungary. It would be hard to find “purity” in any stock


15 posted on 11/26/2007 4:48:02 PM PST by Eric in the Ozarks (Go Hawks !)
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To: blam

Hmmm, how does this fit in with the study of Eskimo dentition? From living Eskimos to fossil evidence, there seems to have been 3 different waves, as to teeth types/patterns, that developed in the arctic populations.


16 posted on 11/26/2007 4:48:09 PM PST by timer (n/0=n=nx0)
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To: NordP
Proving something EVERY Minnesotan knows...they were just trying to get the heck out of Syberia ASAP...they were FREEZING!

Couldn't figure why some stayed in Alaska The Eskimos
17 posted on 11/26/2007 4:48:19 PM PST by uncbob (m first)
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To: uncbob
Yep, still tryin' to figure out why when the choices were being made that EVERYone didn't go as close to the Equator as possible.

Now that I'm "out" of MN...I won't live ANYwhere that palm trees don't grow. ;-)

Lovely people in cold places...but just can't live there anymore myself.

18 posted on 11/26/2007 4:54:44 PM PST by NordP (Such tough choices ahead, I'm now a "middle of the road" voter--somewhere between RUSH & Savage ;-))
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To: timer
Teeth:

Sinodonty and Sundadonty

I believe Kennewick Man has sundadont teeth.

19 posted on 11/26/2007 5:25:32 PM PST by blam (Secure the border and enforce the law)
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To: Coyoteman
Or, rather than the movements of whole populations, the trail of girls traded from tribe to tribe over thousands of years.

Humans trade the girls. So do our cousins the chimps.

20 posted on 11/26/2007 5:37:44 PM PST by muawiyah
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To: muawiyah
Or, rather than the movements of whole populations, the trail of girls traded from tribe to tribe over thousands of years.

Humans trade the girls.

Right, but not when a group is migrating into an unoccupied territory. Then there is nobody to trade with.

21 posted on 11/26/2007 5:47:53 PM PST by Coyoteman (Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.)
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To: blam
Bunch of Western Siberians also have sundadont teeth.

There are other features that go with the teeth ~ best known modern populations with this tooth type are the Japanese (40% have them), with the Samurai class within that population having a higher percentage ~ which is consistent with the theory that "tamed Emeshi" warriors evolved under Imperial rule to become a permanent warrior class.

Not sure what kind of teeth the Japanese royal family has, but they could have the same kind as Buddha's Sakha tribe had. Seems they were driven out of India only to relocate to North China/Southern Siberia where they mixed with the people known today as the Yakut. The Japanese royal family arises out of the group of Yakuts who ended up conquering Korea circa 500 AD, and then Japan about 560 AD.

The Sakha/Saka spoke Tocharian which is an Indo-European language with roots that seem close to ancient Celtic languages.

The biggest benefit to the Japanese royal family (actually, a whole class of families with claims to the original royal line) is that the women are buxom ~ you can find the same phenomenon among residual noble class families in Korea (most of whom seem to live in the United States anymore).

22 posted on 11/26/2007 5:50:00 PM PST by muawiyah
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To: Coyoteman
"Over thousands of years" ~ even the furthest flung tribe has somebody to trade with back up the trail.

It happens. It distorts the information.

23 posted on 11/26/2007 5:51:06 PM PST by muawiyah
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To: blam

Could it be that the last waves of new peoples wiped out the previous peoples? Naw, we all know how peace loving at the “natives” are.......


24 posted on 11/26/2007 6:06:35 PM PST by machman
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To: timer
From living Eskimos to fossil evidence, there seems to have been 3 different waves, as to teeth types/patterns, that developed in the arctic populations.

My understanding is that the linguistic evidence also supports 3 waves. With the Inuit being the most recent. The first wave languages occupied all of South America, central America, and much of North America before European Languages replaced them.

25 posted on 11/26/2007 6:06:46 PM PST by Fraxinus (My opinion worth what you paid.)
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To: muawiyah
Christy Turner chose the name Sundadont for the name of these particular type of teeth from the area of its origins, Sundaland.


26 posted on 11/26/2007 6:14:11 PM PST by blam (Secure the border and enforce the law)
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To: blam

I think a guy at the Discovery Institute proved this sometime in the last couple of years. This just confirms his work. Another nail in the coffin of Mormonism.


27 posted on 11/26/2007 6:17:38 PM PST by SeaHawkFan
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To: muawiyah
"The Sakha/Saka spoke Tocharian which is an Indo-European language with roots that seem close to ancient Celtic languages."

On The Presence Of Non-Chinese At Anyang

Blondie

28 posted on 11/26/2007 6:19:00 PM PST by blam (Secure the border and enforce the law)
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To: muawiyah
THE SAMURAI AND THE AINU
29 posted on 11/26/2007 6:22:51 PM PST by blam (Secure the border and enforce the law)
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To: blam

Interesting. I have wondered about this a lot.


30 posted on 11/26/2007 6:27:26 PM PST by mysterio
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To: blam
Did a relatively small number of people from Siberia who trekked across a Bering Strait land bridge some 12,000 years ago give rise to the native peoples of North and South America?

It seems to me skeletal remains and evidence of early homo sapien life have been found in North America dating back at least 25 thousand years.

31 posted on 11/26/2007 6:33:31 PM PST by BluH2o
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To: blam
Did a relatively small number of people from Siberia who trekked across a Bering Strait land bridge some 12,000 years ago give rise to the native peoples of North and South America? Or did the ancestors of today’s native peoples come from other parts of Asia or Polynesia, arriving multiple times at several places on the two continents, by sea as well as by land, in successive migrations that began as early as 30,000 years ago?

I thought it was the Lamanites...

32 posted on 11/26/2007 6:37:25 PM PST by Jim Noble (Trails of trouble, roads of battle, paths of victory we shall walk.)
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To: SeaHawkFan
I think a guy at the Discovery Institute proved this sometime in the last couple of years. This just confirms his work.

I would like to see a citation for this "proof."

From what I have seen of the Discovery Institute's writings, they are loaded with lawyers and PR flacks, but very short on scientists. And the few scientists they do have are committed creationists first and actual scientists last.

33 posted on 11/26/2007 6:38:05 PM PST by Coyoteman (Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.)
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To: BluH2o
"It seems to me skeletal remains and evidence of early homo sapien life have been found in North America dating back at least 25 thousand years."

Arlington Springs Woman is the oldest human skeleton ever found in the Americas.

34 posted on 11/26/2007 6:45:17 PM PST by blam (Secure the border and enforce the law)
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To: blam
It's pretty obvious the Samurai and the Ainu have a common heritage which includes certain "racial markers". On the other hand, the Ainu continued to reside in Siberia and North China while the people who became the Samurai lived in what are now the Japanese islands. These are the people known in the Middle Ages as the Emeshi, and they have a culture quite distinct from the Ainu.

Sometime in the late Middle Ages the Emeshi pulled out of the North and moved to Fukuoka to serve as a repository of military force for use by the Emperor and the Daimyo.

That allowed the Ainu to relocate from continental coastal regions into the Northernmost Japanese islands without resistance or difficulty.

Talk about causing some problems in figuring out who came first, the Emeshi or the Samurai.

This has been figured out rather recently, but it definitely addresses the problem in Japanese shaministic folktale lore where the BADGER is the chief animal rather than the BEAR as with the Ainu.

The bear cult, though, extends all the way across the Arctic to Northwest Russia and suggests the Ainu were, in the past, far less isolated from world civilization than they now appear.

35 posted on 11/26/2007 7:05:50 PM PST by muawiyah
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To: Fraxinus; blam

This is a good discussion of ancient origins of the original american inhabitants. My great, great grandmother was 1/2 ojibwa(canadian tribe)back in the civil war days. As silly as it sounds, back in the jimmy carter days and minority hiring on construction projects, my dad went back to MN and got himself declared an ojibwa tribal member(for “consideration” of course). Thus as a electrical contractor he was the usual 10% minority on construction projects. Silly, but true....


36 posted on 11/26/2007 7:18:20 PM PST by timer (n/0=n=nx0)
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To: timer
"My great, great grandmother was 1/2 ojibwa(canadian tribe)back in the civil war days."

There's a possibility you could be DNA haplogroup 'X'. Twenty five percent of the Ojibwa are 'X'.

37 posted on 11/26/2007 8:12:58 PM PST by blam (Secure the border and enforce the law)
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To: timer

Tracing The Genes

38 posted on 11/26/2007 8:16:48 PM PST by blam (Secure the border and enforce the law)
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To: blam

Oppenheimer places X across the Bering Strait, not across the Atlantic.


39 posted on 11/26/2007 8:33:21 PM PST by Coyoteman (Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.)
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To: martin_fierro

Fascinating stuff!


40 posted on 11/26/2007 8:50:35 PM PST by sheik yerbouty ( Make America and the world a jihad free zone!)
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To: blam

Hmmm, this is most interesting. You’re saying that the ojibwa are, by now, not “pure” genetic amerind DNA, 25% are european DNA ancestry(’X’). We do know that some of the amerinds came down the interior valleys of Canada as we see in the buffalo jumps/fossil evidence. They then were your ‘B’ types, yes?

And yet the A-C-D types worked their way down the coast all the way to south america. This may explain the unexpected finding of a 40,000 year old culture in chile. Of course that may be just a C14 carbon dating mistake, who knows? Then there’s the anomoly of the Kenniwick Man.

I’ve read/seen where europeans were actually in northern china, as seen in the fossil evidence. The dividing line between amerinds and polynesians was somewhere thru the middle of china. The original japanese culture, beyond the ainu, came from KOREA(the lesser of the 2 kingdoms then); this really makes the japanese “lose face” as they’ve always considered the koreans inferiors(my son just married a korean girl).

Then there were the samoans who colonized the hawaiian islands 800 years ago but over the centuries lost contact w/samoa and became isolated, until Captain Cook showed up(note the union jack on the Hawaiian State flag). There were about 500,000 of them then. European diseases wiped all the natives out, only 35,000 survived because of inter-breeding with the portugeuse(immunity). Then the Spanish Galleons from the Philipines to mexico sailed AROUND hawaii for 200+ years, north and south, using the prevailing currents, and never knew they were there....

Then there was Easter Island, another polynesian colonization, but over population wiped them almost completely out(malthusian doctrine)as only a few were left when the Dutch discovered it in 1879(right date?).

What’s the difference? WRITING. The 3 R’s were first invented in Iraq/thereabouts, but the hebrews really took to it; that gave them a leg up on historical knowledge passed down through the generations whereas all these other people passed away into dust. It’s only by these modern scientific methods(archeology, DNA, etc)that we even know they existed. Now you know why you went to school and learned readin/writin/rithmatic : you communicate with the future....


41 posted on 11/26/2007 9:12:18 PM PST by timer (n/0=n=nx0)
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To: timer
Ina Clan - Haplogroup B
42 posted on 11/26/2007 10:49:56 PM PST by blam (Secure the border and enforce the law)
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To: kingu
Image and video hosting by TinyPic

43 posted on 11/26/2007 10:52:36 PM PST by SunkenCiv (Profile updated Sunday, November 18, 2007"'"'"'"'"'"'"'"'"'"'https://secure.freerepublic.com/donate/)
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To: blam; Pharmboy; martin_fierro; StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 24Karet; ...

· join list or digest · view topics · view or post blog · bookmark · post a topic ·

 
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Thanks Blam and Pharmboy.

Y'know, I've never trusted that Gene.

To all -- please ping me to other topics which are appropriate for the GGG list.
GGG managers are Blam, StayAt HomeMother, and Ernest_at_the_Beach
 

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44 posted on 11/26/2007 10:59:29 PM PST by SunkenCiv (Profile updated Sunday, November 18, 2007"'"'"'"'"'"'"'"'"'"'https://secure.freerepublic.com/donate/)
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To: RightWhale
These immigrants had boats.

True.

45 posted on 11/26/2007 11:12:34 PM PST by roamer_1 (Vote for Frudy McRomsonbee -Turn red states purple in 08!)
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To: DAVEY CROCKETT; Calpernia; Velveeta

Ping.


46 posted on 11/27/2007 1:43:26 AM PST by nw_arizona_granny (This is "Be an Angel Day", do something nice for someone today.)
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To: blam

It supports the notion that the survivors come from the single stock. The other groups either did not intermingle and died out or they and their progeny were wiped out in the constant warfare that apparently characterized America before Columbus.


47 posted on 11/27/2007 5:07:31 AM PST by ThanhPhero (di hanh huong den La Vang)
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To: blam

I learn something new every time I read one of these articles. Thank you!!!


48 posted on 11/27/2007 5:10:00 AM PST by SueRae
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To: kingu

All of the principal Archaeological systems are of the nature of religious tenets. It is how the “soft” sciences are done. Those who grew up with a theory will fight a new different one with their last breath. It is as if a theory is disproved then an archaeologist’s life is suddenly of no account. His discoveries and fame become dust.


49 posted on 11/27/2007 5:11:22 AM PST by ThanhPhero (di hanh huong den La Vang)
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To: uncbob

The Eskimos are late arrivals and may not all have walked.


50 posted on 11/27/2007 5:12:35 AM PST by ThanhPhero (di hanh huong den La Vang)
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