Four Last Songs (Vaughan Williams) song of the cycle "Menelaus." The character Menelaus appears both in Homer's "The Iliad" and "The Odyssey". Menelaus is the King of Sparta whose wife, Helen, was taken from him by Paris to Troy. Together with his brother Agamemnon, fellow ruler Odysseus, and other warriors, Menelaus launched the Trojan War to regain his wife and return her to Sparta. In "The Odyssey", Odysseus' son Telemachus visits Menelaus in attempts to obtain news of his father who has not yet returned from the war. The Vaughan Williams' drew inspiration from Menelaus' description to Telemachus of the things Odysseus must do to
Menelaus of Alexandria great circle arcs, which he named "trilaterals") and proves Menelaus' theorem on collinearity of points on the edges of a triangle (which may have been previously known) and its analog for spherical triangles. It was later translated by the sixteenth century astronomer and mathematician Francesco Maurolico. The lunar crater Menelaus is named after him. The titles of a few books by Menelaus have been preserved: Menelaus of Alexandria Menelaus of Alexandria (; , "Menelaos ho Alexandreus"; c. 70 – 140 CE) was a Greek mathematician and astronomer, the first to recognize geodesics on a curved surface as natural analogs of