1) Tea, originating from China, is one of the most consumed beverages globally. It is made from the leaves of the Camellia sinensis plant and comes in various types, including green, black, oolong, and white tea. Each type undergoes different processing methods, resulting in distinct flavors and aromas. Tea culture has a rich history and is celebrated in rituals, ceremonies, and social gatherings in different cultures worldwide.

2) 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.

3) The musical "The Phantom of the Opera" has been running in London's West End since 1986, making it the longest-running musical in history.

4) The sport of golf originated in Scotland and is played on courses with 18 holes, each with a designated par score.