1) The Appalachian Mountains, running along the eastern coast of the United States, are one of the oldest mountain ranges in the world.

2) The push for racial and social justice has led to discussions and actions to address systemic racism, promote inclusivity, and challenge inequalities in various areas, including education, criminal justice, and economic opportunities.

3) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active.

4) 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.