Straight Line - MacTutor History of Mathematics

Trigonometric functions - MacTutor History of Mathematics

History of Mathematics: - ppt video online download

MacTutor History of Mathematics

Historical Notes 6

History of mathematical notation - Wikipedia

How One Line in the Oldest Math Text Hinted at Hidden Universes

8th European Congress of Mathematics

Exponentiation - Wikipedia

Chapter 1. The Golden Ratio: From Ancient Greece to Modern Mathematics, by Pavel Cherkashin

Fermat's Spiral - MacTutor History of Mathematics

Inverse-square law - Wikipedia

Gergonne Theorem - MacTutor History of Mathematics