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

2) The hibiscus flower is commonly associated with tropical regions and is the national flower of several countries, including Malaysia, South Korea, and Haiti.

3) The assassination of Archduke Franz Ferdinand of Austria in 1914 triggered the start of World War I.

4) The Berlin Conference in 1884-1885 divided Africa among European powers and set the stage for the colonization of the continent.