Olry Terquem

After he died, his funeral was officiated by Lazare Isidor, the Chief Rabbi of Paris and later of France, and attended by over 12 generals headed by Edmond Le Bœuf.

[5] He also gave a new proof of Feuerbach's theorem that the nine-point circle is tangent to the incircle and excircles of a triangle.

[2] Terquem has been called the first, most radical, and most outspoken of the major proponents of Jewish reform in France,[6][7] "the enfant terrible of French Judaism".

[6] The first nine of these appeared in L'Israélite Français, and the remaining 18 as letters to the editor in Courrier de la Moselle.

[9] Terquem rejected the Talmud,[8][10] proposed to codify intermarriage between Jews and non-Jews,[8] pushed to move the sabbath to Sunday,[6][10] advocated using other languages than Hebrew for prayers,[2] and fought against circumcision,[7] regressive attitudes towards women,[6] and the Jewish calendar.

The nine-point circle of a triangle. The three marked points that lie on the circle and interior to the triangle are the ones found by Terquem. The point of convergence of the three red lines through the triangle is its orthocenter .