of bright planet Venus, the same entoptic phenomenon as Purkyne's blue arcs near an unsteady red-colored pointlike lightsource), Mädler's square (a more-or-less rectangle shaped formation near crater Fontenelle on the moon's surface) George Maduro, Dutch resistance fighter – Madurodam. Gaius Maecenas, Roman patron of literature and the arts – maecenas (arts patron) Ferdinand Magellan, Portuguese explorer – Strait of Magellan, Large Magellanic Cloud, Small Magellanic Cloud François Magendie, French physiologist – foramen of Magendie. Pierre Magnol, French botanist – magnolia. Heinrich Gustav Magnus, German chemist – Magnus effect, Magnus's green salt. Jules Germain François Maisonneuve, French surgeon – Maisonneuve fracture. Nestor Makhno, Ukrainian revolutionary leader – Makhnovism. Mrs. Malaprop, a character in The Rivals, a play by Richard Brinsley Sheridan – malapropism. La Malinche, Aztec translator – Malinchism, Malinche (volcano). G. Kenneth Mallory American physician, and Soma Weiss, Hungarian physician – Mallory–Weiss syndrome. Marcello Malpighi, Italian surgeon – Malpighian corpuscles, Malpighian tubule system, Malpighian pyramids, Malpighiaceae Thomas Malthus, British economist – Malthusian, Malthusianism, Malthusian Growth Model, Malthusian catastrophe Giorgio and Gregorio Mamo, Maltese land owners – Mamo Tower Nelson Mandela, South African activist and president – Mandela effect, Nelson Mandela Day, Madiba shirt ("Madiba" was Mandela's nickname, derived from his tribe). Benoît Mandelbrot, Polish mathematician – Mandelbrot set. Mani, Mesopotamian religious leader – Manichaeism. Russ Manning, American comics artist – Russ Manning Award Manolete, Spanish bullfighter – "Manoletina technique". Antoine Marfan, French physician – Marfan syndrome. Margherita of Savoy, Italian queen – pizza margherita. although it probably was not called "Margherita". In 1830, in the book Napoli, contorni e dintorni, written by Riccio, it was described as a pizza with tomato, mozzarella and basil. Henrietta Maria of France, French-born English queen – Maryland Queen Mariana of Austria or Marie-Anne of Austria, Austrian-born Spanish queen – Mariana Islands, Mariana Trench Pierre Marie, French neurologist – Charcot–Marie–Tooth disease Mariko Aoki, Japanese essayist – Mariko Aoki phenomenon. Giambattista Marino, Italian poet – Marinism. Saint Marinus, Christian saint – San Marino Mark the Evangelist, Christian saint – Saint Mark's Tower Benjamin Markarian, Armenian astrophysicist – Markarian galaxies Michael Marks and Thomas Spencer, British businessmen – Marks and Spencer Géza Maróczy, Hungarian chess player – Maróczy Bind Mars, Greek-Roman mythological character – Martius (month), Mars (planet) Frank Mars, American businessman – Mars (chocolate bar) James Marsh, British chemist and inventor - Marsh test. Frank Marshall, American chess player – Marshall Defense George C. Marshall, American