In what year did Spain adopt its current constitution?
In what year did Switzerland join the United Nations?
In what year did German reunification take place?
In what year did France approve by referendum the reduction of the presidential term from seven to five years?
In what year did Hawaii become a state of the United States?
How many justices sit on the Supreme Court of the United States?
How many electoral votes are there in total in a United States presidential election?
How many amendments to the Constitution of the United States had been ratified as of 1 January 2025?
In what year was the Good Friday Agreement signed?
In what year did Poland join the European Union?
In what year was the Schengen Agreement signed?
In what year did Bulgaria and Romania join the European Union?
How many cantons does Switzerland have?
In what year was the Treaty of Westphalia signed?
In what year did Sweden become a member of NATO?
How many countries signed the North Atlantic Treaty as founding members of NATO in 1949?
In what year was the Soviet Union formally dissolved?
How many seats does the European Parliament have following the 2024 European elections?
How many member states did NATO have on 1 January 2025?
In what year did the Rome Statute of the International Criminal Court enter into force?
