WThe Vilayet of Adrianople or Vilayet of Edirne was a first-level administrative division (vilayet) of the Ottoman Empire.
WThe Eyalet of Adrianople or Edirne or Çirmen was constituted from parts of the eyalets of Silistra and Rumelia in 1826.
WThe Convention of Sofia between Bulgaria and the Ottoman Empire (Turkey) was signed on 6 September (24 August O.S.) 1915. It rectified the border between the two countries in Bulgaria's favour in order to bring Bulgaria into the First World War on the side of the Central Powers.
WThe Sanjak of Dedeağaç, originally in 1878–1884 the Sanjak of Dimetoka, was a second-level province (sanjak) of the Ottoman Empire in Thrace, forming part of the Adrianople Vilayet. Its capital was Dedeağaç, modern Alexandroupoli in Greece.
WThe Sanjak of Gümülcine was a second-level province (sanjak) of the Ottoman Empire in Thrace, forming part of the Adrianople Vilayet. Its capital was Gümülcine, modern Komotini in Greece.
WThe Battle of Peritheorion on 7 July 1345 between the forces of Momchil, the quasi-independent ruler of Rhodope, and an allied Byzantine-Turkish force headed by John VI Kantakouzenos and Umur Bey of Aydin. The two armies met in front of the walls of the city of Peritheorion, and the battle resulted in a crushing victory for the allied army, with Momchil himself falling in the field.
WThe Provisional Government of Western Thrace later Independent Government of Western Thrace, was a small, short-lived unrecognized republic established in [Western Thrace]from August 31 to October 25, 1913. It encompassed the area surrounded by the rivers [Maritsa] (Evros) in the east, Mesta (Nestos) in the west, the [Rhodope Mountains] in the north and the [Aegean Sea] in the south. Its total territory was c. 8.600 km².
WThe Treaty of Neuilly-sur-Seine required Bulgaria to cede various territories, after Bulgaria had been one of the Central Powers defeated in World War I. The treaty was signed on 27 November 1919 at Neuilly-sur-Seine, France.