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Thread: 50% replacement in MLBA Britain

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    Default 50% replacement in MLBA Britain


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    He said in "Southern Britain not in Northern Britain so not in Scotland that must reflect we think about a 50% population replacement and then of course there's Saxon movements".

    So what population could have caused this? Anyway that is really interesting and it will be interesting if he published more on this.

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    That was the final blow to the Celtic British Beakers hypothesis.


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    Great.

    Mid Bronze Age would be surprisingly early, but that level of replacement doesn't surprise me. I was never convinced by the idea that the Celtic influence in Britain was minor.

    Now that we know the replacement rate, should be able to calculate the approximate genetic profile of the invading Celts just in G25, based on Early Bronze Age vs Iron Age/Roman British.

    Code:
    Target: England_CA_EBA
    Distance: 3.1945% / 0.03194460
    53.6	Yamnaya_RUS_Samara
    31.0	TUR_Barcin_N
    15.4	WHG
    
    Target: England_MBA
    Distance: 3.7488% / 0.03748788
    51.6	Yamnaya_RUS_Samara
    32.6	TUR_Barcin_N
    15.8	WHG
    
    Target: England_IA
    Distance: 3.8860% / 0.03886000
    49.6	Yamnaya_RUS_Samara
    36.6	TUR_Barcin_N
    13.8	WHG
    
    Target: England_Roman
    Distance: 4.1337% / 0.04133724
    48.6	Yamnaya_RUS_Samara
    36.8	TUR_Barcin_N
    14.6	WHG
    So probably something like:

    45-46% Steppe
    40-41% Farmer
    12-13% WHG

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    Quote Originally Posted by Grace O'Malley View Post
    So what population could have caused this?
    The forefathers of Insular Celts clearly.

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    Quote Originally Posted by Token View Post
    The forefathers of Insular Celts clearly.
    I wonder what level of replacement will be for Iron Age (some Belgae are said to migrate there), Roman Age and Saxon invasion.

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    Urnfield culture from the continent then.

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    That likely happened in a lot of places. First the original steppe dispersing directly in countries, then some already settled in Europe acquiring more pre BA ancestry with time, replacing in part the original waves. Lots of turnover, still essentially a process of stabilizing BA and farmers ancestry.

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    Quote Originally Posted by Lucas View Post
    I wonder what level of replacement will be for Iron Age (some Belgae are said to migrate there), Roman Age and Saxon invasion.
    Good point about the Belgae, so the Southern Britons would have been mostly derived from Continental Celts by the time the Romans met them. It's no wonder then that the Romans made the distinction between the 'Maritime' Southern Britons, who were largely the same as Northern Gauls, and the more native 'Interior' Britons, who sound like they kept up an almost Bronze Age lifestyle by comparison.

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    Quote Originally Posted by Creoda View Post
    Good point about the Belgae, so the Southern Britons would have been mostly derived from Continental Celts by the time the Romans met them. It's no wonder then that the Romans made the distinction between the 'Maritime' Southern Britons, who were largely the same as Northern Gauls, and the more native 'Interior' Britons, who sound like they kept up an almost Bronze Age lifestyle by comparison.
    Just to illustrate this, a map made by Mitchellsince1890 on Anthrogenica, of Hallstatt A & B sites, likely representing areas with the greatest early Continental Celtic settlement in Britain. Southern England then had another known influx in the Iron Age from Belgae.


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