European FederationThe European Federation, also referred to as the United States of Europe (USE), European State, or Federal Europe, is the hypothetical scenario of European integration leading to the formation of a sovereign superstate (similar to the United States of America), organised as a federation of the member countries of the European Union (EU), as contemplated by political scientists, politicians, geographers, historians, futurologists and fiction writers.
Ethnic groups in EuropeEuropeans are the focus of European ethnology, the field of anthropology related to the various ethnic groups that reside in the states of Europe. Groups may be defined by common genetic ancestry, common language, or both. The total number of national minority populations in Europe is estimated at 105 million people, or 14% of 770 million Europeans. The Russians are the most populous among Europeans, with a population of roughly 120 million. There are no universally accepted and precise definitions of the terms "ethnic group" and "nationality".
Christianity in EuropeChristianity is the largest religion in Europe. Christianity has been practiced in Europe since the first century, and a number of the Pauline Epistles were addressed to Christians living in Greece, as well as other parts of the Roman Empire. According to a 2010 study by the Pew Research Center, 76.2% of the European population identified themselves as Christians. As of 2010, Roman Catholics were the largest Christian group in Europe, accounting for more than 48% of European Christians.
BrexitBrexit (ˈbrɛksᵻt,_ˈbrɛgzᵻt; portmanteau of "British exit") was the withdrawal of the United Kingdom (UK) from the European Union (EU) at 23:00 GMT on 31 January 2020 (00:00 1 February 2020 CET). The UK is the only sovereign country to have left the EU. The UK had been a member state of the EU or its predecessor the European Communities (EC), sometimes both at the same time, since 1 January 1973. Following Brexit, EU law and the Court of Justice of the European Union no longer have primacy over British laws.