The ancient region of Osat is located in the eastern part of Republika Srpska and stretches from Višegrad on the left side of the Drina River all the way to Srebrenica. This region is characterized by traditional Serbian houses called "Osećankes."
Osat is first mentioned in written documents in the Middle
Ages in a treaty between Hungarian King Sigismund and Despot Stefan Lazarević
in 1426.
"Osećankes" consist of two parts - the house and the room.
The house is where the fire burns, where cooking and dining
take place, and where other tasks are carried out. It is the most important
space in the multi-family patriarchal community. The room is intended for
festivities and the stay of children and household members during cold winter
days.
Osat was once considered the cradle of Serbian architecture
and was known for skilled masons who rebuilt the devastated Serbia in the late
18th and early 19th centuries.