Why is there no unified language in Europe?

Because Europe is a multi-ethnic continent, different countries and different nationalities have different languages. The EU can only unify currency and culture, but it cannot unify regime and language.

Europe, named after the Greek mythical figure "Europa" (Greek: ε υ ρ? πη? ), located in the northwest of the old hemisphere, borders the Arctic Ocean in the north, the Atlantic Ocean in the west and the Mediterranean Sea and the Black Sea in the south. The mainland is east to the polar Ural Mountains (6610' east longitude and 67 46' north latitude), south to Cape Maroqi (5 36 minutes west longitude and 36 degrees north latitude), west to Cape Rocca (9 31'west longitude and 38 47' north latitude), and north to Nuo.

Europe is the sixth largest continent in the world with a population density of 70 people \km? , is the third most populous continent in the world, second only to Asia and Africa. More than 99% of the population belongs to the Europa race, which is a relatively homogeneous continent. Europe is one of the most livable continents with high living standards, high environmental and human development indexes.