For 10 points, name this port on the Thermaic Gulf, the second most populous city in Greece.
A book by Mark Mazower called this city the "City of Ghosts" and traced the history of its Sephardic Jewish community, which made up a majority of its population in the early 16th century. The 10th Irish Division was withdrawn from Gallipoli to be shipped to this city, whose use as a base for Allied forces in World War I led Georges Clemenceau to call its troops "the (*) gardeners" and Erich Ludendorff to refer to this city as a giant self-sustaining POW camp. This city, a center of trade on the Via ► Egnatia, was where Gothic troops under the Emperor Theodosius carried out a notorious 390 AD massacre. For 10 points, name this port on the Thermaic Gulf, the second most populous city in Greece.
A book by Mark Mazower called this city the "City of Ghosts" and traced the history of its Sephardic Jewish community, which made up a majority of its population in the early 16th century.
Thessaloniki (or Thessalonica or Salonika)