A major factor in the ascendancy of Moscow was the cooperation of its rulers with the Mongol overlords, who granted them the title of Grand Prince of Moscow and made them agents for collecting the Tatar tribute from the Russian principalities.
Greece is part of the European continent. The country is located in the southeastern part of Europe. Additionally it has been part of the European Union or EU since 1981.reece is part of the European continent. The country is located in the southeastern part of Europe. Additionally it has been part of the European Union or EU since 1981.
In modern times, Athens is a large cosmopolitan metropolis and central to economic, financial, industrial, maritime, political and cultural life in Greece. In 2012, Athens was ranked the world's 39th richest city by purchasing power and the 67th most expensive in a UBS study. Athens is a global city and one of the biggest economic centres in southeastern Europe. It has a large financial sector, and its port Piraeus is both the largest passenger port in Europe, and the second largest in the world.