1) The largest insurance market in the world is Lloyd's of London, which is not an insurance company but a market where insurance brokers and underwriters come together.

2) In Norse mythology, the World Tree, known as Yggdrasil, is a massive ash tree that connects the nine realms of existence. It is considered the center of the cosmos and serves as a conduit between different realms, including Asgard (realm of the gods), Midgard (realm of humans), and Helheim (realm of the dead).

3) The first modern health insurance policy was introduced in Germany in the late 19th century.

4) The word "pencil" contains two vowels: E and I.