Renaissance artist Michelangelo ordered many of his artworks to be hidden by his pupils in a secret room to protect them for posterity, an Italian researcher claimed.
US government lawyers accused Live Nation of abusing its market power to gouge concert goers with high fees, as an antitrust trial began before jurors in New York.
The second-hand market for smartphones has surged in recent years, borne up by lower prices as well as interest in eco-friendly consumption, even as some still fear buying a dud.