1) The Epic of Gilgamesh, originating from ancient Mesopotamia, is one of the oldest surviving works of literature and tells the story of the heroic king Gilgamesh and his quest for immortality. It explores themes of friendship, mortality, and the relationship between humans and the divine.

2) The sitcom "Friends" is known for its iconic Central Perk coffee shop, where the main characters often gather.

3) The concept of political stability refers to the ability of a government or political system to maintain continuity, order, and effective governance over a prolonged period, promoting social cohesion and economic development.

4) The term "cloud computing" refers to the delivery of computing services, including storage, databases, and software, over the internet rather than on a local server.