1) The Olympic Games, originating in ancient Greece, were revived in 1896 and are now held every four years, bringing together athletes from around the world.

2) 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.

3) The concept of proportional representation, used in some electoral systems, aims to ensure that political parties' representation in government aligns more closely with the proportion of votes they receive from the electorate.

4) The Scottish Highlands, located in the northern part of Scotland, are characterized by rugged landscapes, mountains, and lochs (lakes). They are known for their natural beauty, rich history, and cultural heritage, attracting outdoor enthusiasts and those seeking tranquility in nature.