ANKARA — In the misty mountains and coastal towns of Turkey’s eastern Black Sea, the Laz language, which once echoed through the lanes of small villages, now lingers mostly in the quiet houses of great-grandparents, and activists are turning…

ANKARA — In the misty mountains and coastal towns of Turkey’s eastern Black Sea, the Laz language, which once echoed through the lanes of small villages, now lingers mostly in the quiet houses of great-grandparents, and activists are turning…