A joint expedition of Russian and Korean archeologists studying a site of Balhae Era resulted in finding evidences that prove existence of a big administrative centre in the Primorye Territory in the 9th - 11th centuries.
      
      “We have found a building in the shape of a palace, well-known to us from diggings of capital cities of Balhae in China. Nothing of the kind had been found in the Primorye before. The discovery confirms the supposition that Primorye was not just a periphery of the Balhae state, but an administrative centre once existed there. We are going to find out what it was exactly” - archeologist Nikolai Klyuev said.
      
      The history of outskirts of the Balhae state is rather scarce and full of questions, whereas the discovery will help to solve many of them, the archeologist explains.
      
      Source: rian.ru