it's likely from my ancestors. I'd be willing to bet that they had to come up with agriculture before the rest of the world as their island slowly began to sink before that terrible year long ago where a tidal wave did the whole island in.
It seems very likely given the locations being discussed.
Where is your family from?
my fathers side 10,000 years ago; Doggerland. Genetic haplogroup from my paternal side, according to DNA testing is predominantly found bordering the north sea and does not exist before the time of Doggerland which is dead center of the cluster of the genes spreading. It's estimated that the line had to have started there.
Doggerland was a land bridge that connected europe and the some of the nordic regions to the UK. as the iceage ended it got seperated and became an island continent of about the size of denmark. It was still a haven for wildlife and hunter gatherers. There are indications from surrounding areas that they were also strong fishing communities. Their abilities in water travel likely made them good traders.
"At about 8000 BC the north-facing coastal area of Doggerland had a coastline of lagoons, saltmarshes, mudflats and beaches as well as inland streams, rivers, marshes and sometimes lakes. It may have been the richest hunting, fowling and fishing ground in Europe in the Mesolithic period"
But eventually a " megatsunami around 6200 BC (approximately 8200 BP) caused by a submarine landslide off the coast of Norway known as the Storegga Slide." and further insult to injury "the bursting of Lake Agassiz released so much fresh water to the world ocean that sea level over about two years rose enough to permanently flood much of Doggerland"
so the population spread to areas bordering the north sea and stayed clustered there pretty much, not spreading very far until more recent centuries.
I'd wager that as water levels rose and hunting and gathering thinned game and plants for a growing population it would have required a more proactive game and plant managment akin to proto-agriculture. and being a population that grew around the seas and likely traveled across growing stretches of water through their history, they likely were experienced sea travelers and traders in the area before being forced to escape the sunken island.
They probably supplied crops and animal goods and carried some with them when they were forced to resettle to the coasts around the north sea.
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