1) The role of the judiciary is to interpret laws, resolve disputes, and ensure justice in accordance with legal principles and the constitution. It serves as a check on the executive and legislative branches of government.

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

3) The first car with air conditioning was released in 1939.

4) The first photograph of a black hole was captured in 2019 using a network of telescopes around the world.