Subdivisions of Kyiv, the capital city of Ukraine, include formal administrative subdivisions known as urban districts (raions) and also more specific, informal subdivisions referred to as historical neighborhoods. The city is divided in half by the river Dnipro, and therefore creates two important portions of the capital city. The so-called "Left-bank of Kyiv", as in reference to the river Dnipro, and which is the newer half of the city, plus the "Right-bank of Kyiv", which includes the original or historic City of Kyiv.