Given the question: Information: - Central Macedonia is one of the thirteen administrative regions of Greece, consisting of the central part of the geographical and historical region of Macedonia. With a population of almost 1.9 million, it is the second most populous in Greece after Attica. - Greece (' ), officially the Hellenic Republic (Greek: ' ), historically also known as Hellas ("" ), is a country in southeastern Europe. Greece's population is approximately 10.955 million as of 2015. Athens is the nation's capital and largest city, followed by Thessaloniki. - Thessaloniki is the second-largest city in Greece and the capital of Greek Macedonia, the administrative region of Central Macedonia and the Decentralized Administration of Macedonia and Thrace. Its nickname is ("Symprotevousa"), literally "the co-capital", a reference to its historical status as the ("Symvasilevousa") or "co-reigning" city of the Eastern Roman (Byzantine) Empire, alongside Constantinople. - The Communist Party of Greece ("Kommounistiko Komma Elladas", KKE) is a MarxistLeninist political party in Greece. Founded in 1918 as the Socialist Labour Party of Greece, it is the oldest party active in the Greek political scene. - The Ottoman Empire ('; Modern Turkish: ' or '), also known as the Turkish Empire, Ottoman Turkey, was an empire founded at the end of the thirteenth century in northwestern Anatolia in the vicinity of Bilecik and Sout by the Oghuz Turkish tribal leader Osman. After 1354, the Ottomans crossed into Europe, and with the conquest of the Balkans the Ottoman Beylik was transformed into a transcontinental empire. The Ottomans ended the Byzantine Empire with the 1453 conquest of Constantinople by Mehmed the Conqueror. - Avraam Eliezer Benaroya ( 1887 16 May 1979) was a Jewish socialist, member of the Bulgarian Social Democratic Workers' Party (Broad Socialists), later leader of the Socialist Workers' Federation in the Ottoman Empire. Benaroya played a key role in the foundation of the Communist Party of Greece in 1918. - Constantinople was the capital city of the Roman/Byzantine Empire (3301204 and 12611453), and also of the brief Latin (12041261), and the later Ottoman (14531923) empires. It was reinaugurated in 324 AD from ancient Byzantium as the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was named, and dedicated on 11 May 330 AD. - The Socialist Workers ' Federation ( French : Federation socialiste ouvriere , Ladino : Federacion ) , led by Avraam Benaroya , was an attempt at union of different nationalities ' workers in Ottoman Thessaloniki within a single labor movement . 'socialist workers' federation' is related to which object entity through the relation of 'dissolved or abolished'? Choices: - 10 - 1204 - 1453 - 1887 - 1918 - 1979 - 2015 - 9
The answer is:
1918