A History of Non-Euclidean Geometry. by Boris A. Rosenfeld
English | Sep 7, 1988 | ISBN: 0387964584 | 471 Pages | DJVU | 4 MB
The Russian edition of this book appeared in 1976 on the hundred-and-fiftieth anniversary of the historic day of February 23, 1826, when LobaeevskiI delivered his famous lecture on his discovery of non-Euclidean geometry. The importance of the discovery of non-Euclidean geometry goes far beyond the limits of geometry itself. It is safe to say that it was a turning point in the history of all mathematics.