And 90%+ of Polish n1c1 is South Baltic.
I can think of several different sources of origin for N1c1 haplogroup in Poland:
Probably each of these sources contributed some fraction of overall percentage of N1c1:
1) Balto-Slavs probably had some % of N1c1 before they split into Slavs and Balts (therefore Slavs had some % of it since the beginning).
2) Later Balts assimilated new populations with a lot of N1c1, but Slavs could also assimilate some of those peoples.
3) Western Balts (Prussians) mixed with Slavs in the Slavic-Prussian borderland, some Prussians got assimilated into Slavs.
4) After the conquest & Christianization of Prussians in the 13th century there were refugees, some of them escaped to Poland & Belarus.
5) Some of Old Prussian areas were incorporated into Poland and Belarusian principalities (especially lands of the Yotvingians).
6) Polish settlement in southern & western parts of East Prussia (Polish settlers were invited there by Teutonic Knights & by Hohenzollerns).
7) North Belarus & South Lithuania were the areas where East Slavic expansion in the Early Middle Ages assimilated some of local Balts.
8) There were Polish migrations into the GDL throughout centuries, they intermarried with locals. There was a smaller reverse movement too.
9) During times of the Polish-Lithuanian Union and later (after 1795), Polonization of groups of Belarusians and Lithuanians took place.
10) After WW2 many Poles from Eastern Poland (including Lithuania and Belarus) were deported or emigrated on their own to Poland.
GDL = Grand Duchy of Lithuania.
FamilyTreeDNA hosts the "Nobility of Grand Duchy of Lithuania" project - descendants of 26 (43%) out of 61 nobles included in this study live in Poland today (and this % is probably still lower than for all nobles):
https://www.familytreedna.com/public/WXL_Nobility/default.aspx?section=yresults
According to a recent survey by Polish CBOS, today 15% of ethnic Poles from Poland declare having some ancestors from Kresy Wschodnie (former eastern Polish and PLC's territories located east of the Curzon Line; today parts of Ukraine, Belarus, southern Lithuania, south-eastern Latvia and western Russia) - this is approximately 5,800,000 people. Of them 13% (ca. 0,75 million) are people who were born in Kresy personally - mostly old people of course; 43% (ca. 2,5 million) have at least one parent born there, 38% (ca. 2,2 million) have at least one grandparent and 6% (ca. 0,35 million) at least one great-grandparent born there.
PLC = Polish-Lithuanian Commonwealth
Most of these people came from those areas during and after WW2. Origin of population of Poland was examined in Polish censuses of 1947 and of 1950. In 1947 about 2,050,000 people living within new borders of Poland (west of the Curzon Line) belonged to families which in 1939 had lived in Kresy (east of the Curzon Line). By 1950 that number increased to ca. 2,200,000. And in period 1954 - 1959 another group of 250,000 Poles came from Belarus, Lithuania and Ukraine ("2nd Repatriation").
National score for Kresy ancestry is 15% (average for entire Poland) but in some western regions (former German territories) as high as 1/2 of inhabitants. Percentage of people with some ancestors from Kresy by region of Poland:
Let's add that the distribution of immigrants from Kresy in westernmost parts of Poland, was roughly as follows:
Regions:
dolnośląskie & parts of
opolskie - mostly Poles from Ukraine (largest group among immigrants from Kresy)
Region:
lubuskie - mostly Poles from Belarus (who were the 2nd largest group among immigrants from Kresy)
Regions:
zachodniopomorskie & parts of
pomorskie - mostly Poles from Lithuania (3rd largest group)
Pre-war Polish University of Lviv (Lwów) was after 1945 relocated to Wrocław (Breslau), together with its professors.
Graph posted above comes from:
http://kresowiacy.com/2014/01/co-si...lub-pradziadka-urodzonego-na-dawnych-kresach/
http://dzieje.pl/aktualnosci/cbos-co-siodmy-polak-pochodzi-z-kresow
Distribution of M458 indicates that it is not proto-Slavic, but rather only
proto-West Slavic:
This map shows distribution of M458 ("Central European") and one of its main downclades - L260 ("West Slavic"):
Despite being called "Central European", M458 is also characteristic of West Slavs and Germanized former West Slavs:
Areas where Slavs probably originated - Belarus and Ukraine - have not so much of these subclades.
Neither South Slavs nor East Slavs have a lot of these two subclades (M458 and its downclade L260).
BTW, I already quoted exact percentages of these subclades for various groups before (in this thread).
Another map (I'm not sure how accurate it is) - you can see lower frequency of M458 in western Poland, where large part of the population are Poles from Kresy Wschodnie, about whom I mentioned above, and who came after 1945 to replace expelled Germans:
Poles from Kresy Wschodnie are partially "original" Poles and partially Polonized East Slavs and Balts (most are mixed, like I myself):
That area with over 35% of M458 in South-Eastern Germany is Lusatia, homeland of
West Slavic Lusatians-Sorbs.
But as you can see other parts of eastern Germany also have a high frequency of this subclade.
High frequency of M458 in Germany correlates perfectly with areas which used to be West Slavic, but were Germanized.
R1a z280 is actually proto Baltic (or proto Balto Slavic to please Slavic people)
Not "to please Slavic people", but
objectively it is proto-Balto-Slavic, and certainly not just proto-Baltic.
I know that Balts want to see everything as proto-Baltic because they are intimidated by Slavs and also have an inferiority complex to their Slavic neighbours (especially Lithuanians have such an inferiority complex to Poles, because of history and Polish domination).
But please, recognize our common origin instead of considering Slavs as your enemies and as a threat or something.
Vladimir Putin is not a representative of all Slavs. Neither is Russia, nor Russian minority in Latvia.
During the first Pan-Slavic Congress in Prague in 1848 Russians were not even present, because the Cogress was organized mostly by Poles, Czechs and South Slavs - and Russia as you know was the enemy of Poles at that time (actually, throughout most of history
).
I know that Latvians dislike mostly Russians, not Poles.