Regions of Peru density is given to one decimal place in persons per square kilometer. UBIGEO numbers are codes used by INEI to identify national administrative subdivisions. Regions of Peru The regions () of Peru are the first-level administrative subdivisions of Peru. Since its 1821 independence, Peru had been divided into departments () but faced the problem of an increasing centralization of political and economic power in its capital, Lima. After several unsuccessful decentralization attempts, the legal figure of "region" became official and regional governments were elected to manage the departments on November 20, 2002, until their planned fusion into real regions. Under
Peru–Bolivian Confederation Peru–Bolivian Confederation The Peru–Bolivian Confederation was a short-lived state that existed in South America between 1836 and 1839. The country was a loose confederation between the states of Peru, divided into the Republic of North Peru and the Republic of South Peru, and Bolivia, with the capital located in Tacna. The Peru–Bolivian Confederation's formation was personally influenced by Marshal Andrés de Santa Cruz, the President of Bolivia, who served as the first and only head of state under the title “Supreme Protector”. The Peru–Bolivian Confederation was opposed by neighboring countries from its inception, particularly Chile and Argentina, as a potential