The Elements of Euclid. Book 1, proposition 1.
Channel: SW VanDenEnden
Date: 15/06/2018

The Elements of Euclid. 
Book 1, proposition 1: On a given finite straight line to describe an equilateral triangle.
    
Animation based on the book:
The first six books of the Elements of Euclid, in which coloured diagrams and symbols are used instead of letters by Euclid; Byrne, Oliver
Publisher: London, William Pickering 
Publication date: 1847
Download : https://archive.org/details/firstsixbooksofe00eucl