In historical records, the village was first mentioned in 1246 (1246 Deltar, 1384 Dehcher, 1427 Dether), when it belonged to Ratoldoy family. In the 16th century Turks pillaged the village. In consequence of this, epidemics hit its inhabitants. From 1938 to 1945 it belonged to Hungary.
The records for genealogical research are available at the state archive "Statny Archiv in Banska Bystrica, Slovakia"
- Roman Catholic church records (births/marriages/deaths): 1761-1896 (parish B)
- Reformated church records (births/marriages/deaths): 1769-1858 (parish B)
- Surnames of living people in Gemerske Dechtare
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