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

2) In Norse mythology, the Valkyries are divine maidens who serve Odin, the chief god. They are responsible for selecting warriors worthy of entering Valhalla and escorting them to the afterlife. They are often depicted as powerful and beautiful figures, riding winged horses and wielding spears.

3) The word "table" contains two vowels: A and E.

4) The Pacific Ocean is the largest ocean on Earth, covering more than 30% of the planet's surface.