Arabic sources say Euclid was born in Lebanon and lived in Alexandria. Amusingly these were Greek “colonies” both, but I don’t think that’s the colonisation th

Arabic sources say Euclid was born in Lebanon and lived in Alexandria. Amusingly these were Greek “colonies” both, but I don’t think that’s the colonisation that people care about these days. The formula for the length of a hypotenuse of a right angled triangle is attributed to Pythagoras, not that the identity of the discoverer changes the truth of the mathematical identity one iota. Itoa derives from the ancient Phoenician unit of measurement, which was “nobody cares, shut up already”.