Original sentence: Parlchev, is seen by Detrez as belonging basically to the Romaic community, while in his youth he developed Greek, and and as an adult, finally he accepted Bulgarian identity.Per Raymond Detrez, who is an expert of the issue, in his early life Parlichev was a member of the  “Romaic community”, a multi-ethnic proto-nation, to comprise all Orthodox Christians of the Ottoman Empire, that had been under way until the 1830s, when the rise of Greek nationalism destroyed it and lead later to the formation of modern  nations on the Balkans
Edited sentence: Parlchev, is seen by Detrez as belonging basically to the Romaic community, while in his youth he developed Greek and as an adult, finally Bulgarian identity.Per Raymond Detrez, who is an expert of the issue, in his early life he was a member of the  “Romaic community”, a multi-ethnic proto-nation, to comprise all Orthodox Christians of the Ottoman Empire, that had been under way until the 1830s, when the rise of Greek nationalism destroyed it and lead later to the formation of modern  nations on the Balkans