1) The lotus flower is considered a sacred symbol in many cultures and is associated with purity, enlightenment, and rebirth.

2) Rihanna, born Robyn Rihanna Fenty, is a Barbadian singer, actress, and businesswoman. She has achieved great success in the music industry with hits like "Umbrella," "Diamonds," and "Work," and has also ventured into the worlds of fashion and cosmetics with her brands.

3) The concept of reinsurance, which is insurance for insurance companies, originated in the 17th century.

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