Johann Heinrich Lambert, was a German mathematician, physicist and astronomer. He was born in Mülhausen (now Mulhouse, Alsace, France). His father was a poor tailor, so Johann had to struggle to gain an education. He first worked as a clerk in an ironworks, then gained a position in a newspaper office. The editor recommended him as a private tutor to a family, which gave him access to a good library and provided enough leisure time in which to explore it. Wikipedia
Coming thus into virtual possession of a good library, Lambert had peculiar opportunities for improving himself in his literary and scientific studies. www.nndb.com/people/654/000096366/
Britannica online encyclopedia article on Johann Heinrich Lambert: Swiss German mathematician, astronomer, physicist, and philosopher who provided the first rigorous proof that p (the ratio of a circle's circumference to its diameter) is irrational, mean www.britannica.com/eb/article-9046942/Johann-Heinrich-Lam...
The definitive Wikipedia entry for Johann Heinrich Lambert. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Johann_Heinrich_Lambert
Johann Heinrich Lambert was born at Mlhausen on August 28, 1728, and died at Berlin on September 25, 1777. www.maths.tcd.ie/pub/HistMath/People/Lambert/RouseBall/RB...
