1) The insurance industry is one of the oldest industries in the world, with roots dating back thousands of years.

2) The Arctic Ocean is the smallest and shallowest ocean, located at the North Pole. It is covered by sea ice for much of the year.

3) The Boston Celtics and the Los Angeles Lakers are the most successful teams in NBA history, with a combined total of 33 championships.

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