The Empire of Germany (German: Das Reich Deutschlands , Polish: Imperium Niemcy) is a state in Central Europe. The country is a constitutional monarchy and consists of twenty one states while the capital is Frankfurt and the largest city is Berlin. It covers an area of 474,301 sq km and has an estimated population of around 77.9 million (making it the second most populous European nation behind Russia.) It is one of the largest European states (territorially and population) and is a leader in various fields. Officially, the Empire of Germany is the successor to the German Confederation, but really its a successor state to Prussia. Formed out of the responses to the nationalist uprisings throughout the confederation in 1848, the Empire of Germany was created. The Empire of Germany was on the winning side in both world wars and recently celebrated her 110th anniversary as a nation-state.