Nikolai Ivanovich Lobachevsky was a Russian mathematician and geometer, renowned primarily for his pioneering works on hyperbolic geometry, otherwise known as Lobachevskian geometry. William Kingdon Clifford called Lobachevsky the "Copernicus of Geometry" due to the revolutionary character of his work
Birthday: December 1, 1792
Enter your birth day and find out who you are.
That's my sister
Wow, its cute
Wow it's right
Wow I love my name
Oh wow...this says a lot about me
Exactly!real talk ..it's happening in my life now.