The Moravian Church, or the Moravian Brethren, formally the Unitas Fratrum (Latin: "Unity of the Brethren"), is one of the oldest Protestant denominations in Christianity, dating back to the Bohemian Reformation of the 15th century and the original Unity of the Brethren (Czech: Jednota bratrská) founded in the Kingdom of Bohemia, sixty years before Martin Luther's Reformation.
The church's heritage can be traced to 1457 and the Lands of the Bohemian Crown, which included Bohemia, Moravia, Silesia, and previously the Hussite movement against several practices and doctrines of the Catholic Church. Its name is derived from exiles who fled from Moravia to Saxony in 1722 to escape the Counter-Reformation, establishing the Christian community of Herrnhut. Hence, it is also known in German as the Herrnhuter Brüdergemeine [sic] ("Unity of Brethren of Herrnhut").
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