Is Assassin's Creed origins based on a true story?

Related questions

1. Who was the first assassin in history?
2. Are Assassin's Creed origins and Odyssey connected?
3. Where does Assassin's Creed origins take place?
4. Does Assassin's Creed Odyssey take place after Origins?
5. What language do they speak in Assassin's Creed origins?
6. Why do assassins have 3 names?
7. Is abstergo run by Templars?
8. Who invented the word assassination?
9. Who are Templars and Assassins?
10. Is Assassin's Creed odyssey after origins?

Tags

1. #creed
2. #fictional
3. #recounts
4. #origins
5. #ancient
6. #period
7. #secret
8. #action
9. #developed
10. #events
11. #adventure
12. #egypt
13. #world
14. #ubisoft
15. #ptolemaic
16. #video
17. #published
18. #history
19. #montreal
20. #assassin