Before the establishment of the Modern Greek state, the link between ancient and modern Greeks was emphasized by the scholars of Greek Enlightenment especially by Rigas Feraios. In his "Political Constitution", he addresses to the nation as "the people descendant of the Greeks". The modern Greek state was created in 1829, when the Greeks liberated a part of their historic homelands, Peloponnese, from the Ottoman Empire. The large Greek diaspora and merchant class were instrumental in transmitting the ideas of western romantic nationalism and philhellenism, which together with the conception of Hellenism, formulated during the last centuries of the Byzantine Empire, formed the basis of the Diafotismos and the current conception of Hellenism.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"):  What did Greeks do that caused the formation of the old state?
unanswerable