 Over the course of the industrialization period, Medzev/Metzenseifen became an economic center (site of many well-paid blacksmiths [approximately 100], who created agricultural tools).This led to tension in the 1930s between German and Slovakian speakers in the workplace.Before 1920 when Hungary was partitioned due to pressure by the Czechs and Slovaks, after forcing Hungary to sign the Treaty of Trianon, German was the official language of the town, and ethnically 95% German.