Religions Introduced into Eastern Europe

Major religions entered Eastern Europe at different periods:

• Orthodox Christianity: Byzantine missionaries spread it from the 9th century to Bulgaria, Serbia, Romania, and Russia.
• Roman Catholicism: Holy Roman Empire missionaries introduced it from the 11th century to Poland, Hungary, Czechia, and Slovakia.
• Islam: Ottoman expansion brought Islam from the 14th century to Bosnia-Herzegovina, Albania, and Kosovo.
• Judaism: Jewish settlers established communities from the Middle Ages in Poland, Hungary, Czechia, and Slovakia.