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Added pre-1946 Veszprém county (currently uses 2nd survey boundaries throughout)
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Added Habsburg-era Fejér and Komárom counties (currently use 2nd survey boundaries); split Tolna into pre-1850 and post-1860 (to remove Igar panhandle of Fejér)
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Added Habsburg-era Győr, Somogy and Tolna counties (currently use 2nd survey boundaries); Closed up 1850-60 Oedenburg district and pre-1849 Trans-Danubianus boundaries
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Added Habsburg-era Baranya county (currently uses 2nd survey boundaries); Added basic (incomplete) versions of the 1850-60 Oedenburg district and pre-1849 Trans-Danubianus
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Improved/corrected remaining section of Croatia-Hungary border (pre-1918)
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Minor border corrections
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Corrected admin level of the Karlovac Generalate and added as a subarea of the Croatian(-Slavonian) Military Frontier
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Roughly added remaining Croatian Military Frontier districts (I & II)
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Roughly added Banal Military Frontier districts (X & XI)
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Added various Regierungsbezirke as subareas of the Provinces of Prussia; made a few dates more specific
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Added various Kreise as subareas of Regierungsbezirk Marienwerder; added Wikipedia links and Wikidata IDs to said Regierungsbezirk and Kreise
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Fixed (Lauenburg-)Bütow
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Corrected/improved boundaries along the Vistula/Weichsel roughly between Bydgoszcz/Bromberg and Toruń/Thorn
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Cleaned up pre-1793 Poznań and Polish Crown; added as subareas to Polish Crown and Commonwealth
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Cleaned up/closed some relations
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Added note about missing towns pawned to Poland in Hungarian Szepes/Spiš/Spisz/Zips county (Treaty of Lubowla 1412-03-15 until the Bar Confederation 1769/First partition 1772)
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Added 1773-1818 Marienwerder
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Removed Duchy of Prussia from Poland-Lithuania after Treaty of Bromberg (1657)
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Boundary changes between France/Bouillon and Austrian Netherlands 1769
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Added HRE 1697-1742