The 19th century saw the city expand and considerable architectural activity, with the renovation of old and the construction of new buildings. Both the Yeni Mosque and Evrenos' original "masjid", the Eski Mosque, were enlarged by the addition of spacious prayer halls, while Sultan Abdulhamid II erected a clock tower and a "madrasah". During his reign, the town became a station in the railway linking Constantinople with Salonica. By the 1880s, the city, capital of the homonymous "sanjak" in the Edirne Vilayet, boasted 13,560 inhabitants, 10 Friday mosques, 15 "masjids", 2 Greek and one Armenian church, a synagogue, 4 "madrasahs", two higher schools, ten "mektebs", and various other Christian and Jewish schools.