1) The #MeToo movement, originating in 2006 and gaining widespread attention in 2017, raised awareness about sexual harassment and assault, encouraging survivors to share their experiences and promoting discussions on consent and gender equality.

2) The Amazon rainforest produces more than 20% of the world's oxygen.

3) The European Union (EU) is a supranational organization comprising 27 member states that cooperate on various issues, including trade, economic integration, and common policies, while preserving individual national sovereignty.

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.