1) The impact of social media platforms on society and politics has been a subject of debate, including concerns about misinformation, privacy, online harassment, and the influence of these platforms on public opinion and democratic processes.

2) The word "computer" contains three vowels: O, U, and E.

3) The first bank in the world, Banca Monte dei Paschi di Siena, was established in Italy in 1472 and is still in operation today.

4) International relations encompass the study of relationships between nations, including diplomacy, treaties, and foreign policy. It examines the interactions and dynamics among different countries in the global arena.