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

2) Insurance premiums are the payments made by policyholders to insurance companies in exchange for coverage.

3) The development of the World Wide Web Consortium (W3C) and web standards has ensured interoperability and compatibility across different web browsers and devices.

4) Oceans play a crucial role in regulating the Earth's climate by absorbing and storing large amounts of heat and carbon dioxide.