Renaissance Swiss polymath, Conrad Gesner was born 26 March 1516 #histsci
https://thonyc.wordpress.com/2011/03/28/putting-the-lead-in-your-pencil/
Putting the lead in your pencil

Anyone who has regularly reads this blog (does anybody regularly read this blog?) will perhaps be aware of the fact that I have a soft spot for polymaths. There is an expression in German “Fachidio…

The Renaissance Mathematicus