Mars (planet), [2], [3]Marseillaise, the, [343], [345]Marseilles, [129], [182], [312], [345]Martel, Charles, [259], [432]Marlin V, Pope, [286], [304]Marx, [376]Maryland, [337]Mas d’Azil cave, [57]Maximilian, Emperor of Mexico, [390], [391]Maximilian I, Emperor, [309], [433]