Germany, officially the Federal Republic of Germany, is a central European powerhouse with over 83 million residents, making it the most populous member of the European Union, with Berlin as its capital and Frankfurt as its main financial centre. Its remarkable history stretches from ancient humans—who left behind 42,000-year-old flutes and the famous Neanderthal fossil—through the Holy Roman Empire, to the Prussian-led unification into the German Empire in 1871. Following the trauma of World War II and the Holocaust, the nation was divided into West and East Germany, but achieved peaceful reunification on 3 October 1990. Today, it is a major global force, boasting the largest economy in Europe by nominal GDP and ranking as the world's third-largest exporter and importer. Additionally, it holds the third-highest number of UNESCO World Heritage Sites (55), and its German name Deutschland derives from a word meaning "of the people," reflecting its deep-rooted heritage.