Ýmnos is tin Eleftherían (Greek: Ὕμνος εἰς τὴν Ἐλευθερίαν, literally Hymn to Freedom) is the National Anthem of Greece since 1865 and Cyprus since 1966, it was written in 1823 by patriot Dionysios Solomos and was composed by composer Nikolaos Mantzaros in 1865. It's the longest national anthem in the world.[1]