Image of Nikolai Ivanovich Lobachevsky

Nikolai Ivanovich Lobachevsky

was born 230 years ago

1 December 1792

Nikolai Lobachevsky published his work on non-Euclidean geometry, the first account of the subject to appear in print.

Find out more at: https://mathshistory.st-andrews.ac.uk/Biographies/Lobachevsky/