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

2) The world's oldest university, Al-Qarawiyyin, was founded in 859 AD and is located in Fez, Morocco.

3) The word "flower" contains two vowels: O and E.

4) The world's first insurance policy was issued in 1347 in Genoa, Italy. It insured against the risk of maritime trade.