Definition:Non-Euclidean Geometry/Historical Note

Historical Note on Non-Euclidean Geometry
Non-Euclidean geometry was worked by for some years, and by $1820$ had established the main theorems.

However, he kept this all to himself, and it was up to in $1829$ and  in $1832$ (independently of each other and  to publish their own work ( publishing it as an appendix to Tentamen iuventutem studiosam in elementa matheosos introducendi by his father ).

The reason that did not publish his own work was because he recognised that the philosophical climate of Germany at the time would have been unable to accept it.

As he wrote to :
 * I shall probably not put my very extensive investigations on this subject [ the foundations of geometry ] into publsihable form for a long time, perhaps not in my lifetime, for I dread the shrieks we would hear from the Boeotians if I were to express myself fully on this matter.

The Boeotians were a tribe of the ancient Greeks, renowned for being of low intelligence.