No one is quite sure where flamenco came from, although it probably owes its origins to a mosaic of ancient sources.

BBC: I came here to learn flamenco

The mines in the south-west of the province were one of the ancient world's main sources of the metal.

ECONOMIST: The Romans, too, had sophisticated cosmetics

His examples are drawn from a wide array of sources: Albanian, ancient Hebrew, film dubbing and graphic novels, legal documents (huge amounts of translation required) and the Septuagint, the ancient Greek translation of the Hebrew Bible.

ECONOMIST: Shape-shifting

Without easy access to information, farmers cannot know what price is fair for their goods, traders have no alternative to buying imports from local sources, doctors rely on ancient technology, voters can make no informed choices.

ECONOMIST: Tapping into Africa

Despite its criticism from some Arab sources, this treaty stands as proof that diplomacy can bring lasting peace between ancient adversaries.

NPR: Jimmy Carter on Conflict in the Middle East