Complex sentence: Reshid was born to a Circassian family in Russian Caucasia and migrated to Constantinople with his family in 1874, where he enrolled in the Military School of Medicine and was one of the founders of the Committee of Union and Progress (CUP).
Split into simpler sentences: Reshid was born to a Circassian family in Russian Caucasia and migrated to Constantinople with his family in 1874. He enrolled in Constantinople's Military School of Medicine and was one of the founders of the Committee of Union and Progress (CUP).