Menelaus time was ripe to dethrone Mycenae’s hostile ruler, they returned. Assisted by King Tyndareus of Sparta, they drove Thyestes away, and Agamemnon took the throne for himself. When it was time for Tyndareus’ stepdaughter Helen to marry, many kings and princes came to seek her hand. Among the contenders were Odysseus, Menestheus, Ajax the Great, Patroclus, and Idomeneus. Most offered opulent gifts. Tyndareus would accept none of the gifts, nor would he send any of the suitors away for fear of offending them and giving grounds for a quarrel. Odysseus promised to solve the problem in a satisfactory manner if
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