Legend

Eastern Yiddish
The North
Northeastern (Lithuanian) Yiddish

The South
Mideastern (Polish) Yiddish
Southeastern (Ukrainian) Yiddish

The north was entirely within the Russian Empire from the 1790's to World War I, when the empire collapsed. The south was divided between the Russian and Austro-Hungarian (Hapsburg) empires.

Western Yiddish
Spellings of cities reflect current official names; some historical forms are given parenthetically.
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