Analysis of information sources in references of the Wikipedia article "Estonija" in Croatian language version.
The dominant religion in Estonia is Evangelical Lutheranism. Estonians were Christianized by the Teutonic Knights in the 13th century. During the Reformation, Lutheranism spread, and the church was officially established in Estonia in 1686.
Later an alternative proposal was advanced for a United Baltic Duchy under Duke Adolf Friedrich of MecklenburgCS1 održavanje: ref=harv (link)
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