Original sentence: After the promulgation of the Turkish Republic in 1923 he moved to Paris.During the troublesome period of World War I, Sarafian along with his family fled back to Varna where they would remain until the Armistice of Mudros and move to Istanbul.He attended the prestigious  Getronagan Armenian Highschool
Edited sentence: During the troublesome period of World War I, Sarafian along with his family fled back to Varna where they would remain until the 1919 armistice and move to Constantinople.He attended the prestigious Armenian Getronagan lyceum until the Kemalist takeover of government in 1923 in which he was forced to move to Paris