The History of the Natural Logarithm / Calculus

https://www.youtube.com/watch?v=e7DAM1zFDec

 

https://www.youtube.com/watch?v=habHK6wLkic

https://www.youtube.com/watch?v=BrH1fz-jZOo

https://www.youtube.com/watch?v=_-x90wGBD8U&t=53s

https://www.youtube.com/watch?v=ntBWrcbAhaY