Baltic provinces, historic regions of Courland, Livonia, Estonia, and Ingermanland bordering on the eastern coast of the Baltic Sea. They were conquered by Russia from Sweden in the 18th cent. and made into provinces. Ingermanland was included into Russia proper, and the three independent republics of Estonia, Latvia, and Lithuania were established in 1918. See also Baltic states.
"Baltic provinces." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (June 25, 2019). https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/baltic-provinces
"Baltic provinces." The Columbia Encyclopedia, 6th ed.. . Retrieved June 25, 2019 from Encyclopedia.com: https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/baltic-provinces