In Prometheus (2012) they show the birth of the Xenomorphs. In Alien vs. Predator they show that Aliens have been around since the pyramids. How do these timelines work? - Quora
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Alien-Covenant.com on Twitter: "It's an evolution. #AlienCovenant https://t.co/wQzGegM5tg" / Twitter
Timeline of the Alien and Predator Universe - ALIEN: COVENANT takes place in the same year that the United Americas were formed on Earth. | Facebook
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