Arta–Volos line
The Arta–Volos line () or Ambracian–Pagasetic line () was the land border of the Kingdom of Greece and the Ottoman Empire between 1832 and the Annexation of Thessaly in 1881. It was named after the two principal cities in proximity of the border on the Ottoman side, Arta and Volos, and the Ambracian Gulf and the Pagasetic Gulf between which it extended.

The border had been proposed by the Great Powers in the London Protocol of 1829 as the northern boundary of an autonomous Greek state under Ottoman suzerainty, but when the full independence of Greece was agreed on in the London Protocol of 1830, the borders of the new state were reduced to the Aspropotamos–Spercheios line, only to be again expanded in the London Conference of 1832, which was confirmed by the Treaty of Constantinople (1832).
Q209065
Kingdom of Greece
LOC
Q12560
Ottoman Empire
LOC
Q12884962
Annexation of Thessaly
Concept
Q208573
Arta
LOC
Q200036
Volos
LOC
Q284841
Ambracian Gulf
LOC
Q1185210
Pagasetic Gulf
LOC
Q185145
Great Powers
Concept
Q16934089
London Protocol of 1829
MEDIA
Q839396
London Protocol of 1830
MEDIA
Q61115117
Aspropotamos–Spercheios line
UNK
Q625717
London Conference of 1832
ORG
Q2287308
Treaty of Constantinople (1832)
MEDIA
Q25484921
Arta–Volos line
LOC
1832-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1832
DATE
1881-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1881
DATE
1829-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1829
DATE
1830-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1830
DATE
1832-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1832
DATE
+1832^^http://www.w3.org/2001/XMLSchema#decimal
1832
NUMBER
inception
point in time
point in time
point in time
point in time
point in time