It is the oldest Protestant church in the country, founded in the 16th century, and a significant part of the Hungarian-speaking ethnicity belong to this denomination.
During World War II the Soviet troops deported 40,000 people from Sub-Carpathia.
It was restricted to evangelize, to worship and to conduct Sunday school.
[citation needed] From that time, the church sponsors primary and secondary Calvinist schools.
A significant part of ethnic Hungarians in Transcarpathia belong to this church.