A 16th century woodcut shows the interior of a kitchen. In medieval Europe, cooks combined contrasting flavors and spices in much the same way that Indian cooking still does today. Paul Lacroix/Wikimedia hide caption

itoggle caption Paul Lacroix/Wikimedia

German policemen stand outside a house believed to belong to Andreas Lubitz in Montabaur, Germany, on Thursday. Lubitz, the co-pilot on the Germanwings plane that crashed Tuesday, is suspected of deliberately crashing a the jet into the French Alps. Ralph Orlowski /Reuters /Landov hide caption

itoggle caption Ralph Orlowski /Reuters /Landov

An image from AFP TV video taken Tuesday shows smoke billowing from scattered debris of the Germanwings Airbus A320 at the crash site in the French Alps above the town of Seyne-les-Alpes, France. Denis Bois/AFP/Getty Images hide caption

itoggle caption Denis Bois/AFP/Getty Images

Students mourn in front of their school in Haltern, Germany, on Wednesday, a day after the Germanwings plane crash. Sixteen high-schoolers and two teachers from the school were among the 150 people onboard the plane. Martin Meissner/AP hide caption

itoggle caption Martin Meissner/AP