The Cherkess Autonomous Oblast (; , ÃÂérkés avtonomne oblastâÂÂ) or Cherkessia (; , à  erdà ¾es, or , ÃÂérkés xekw) was an autonomous oblast of the Russian SFSR, Soviet Union, created on April 26, 1926, by the split of the Karachay-Cherkess Autonomous Oblast. It was called the Cherkess National Okrug () until April 30, 1928. It was dissolved in 1957 by the creation of the new Karachay-Cherkess Autonomous Oblast.