Polonium the Curies while they were investigating the cause of pitchblende radioactivity. Pitchblende, after removal of the radioactive elements uranium and thorium, was more radioactive than the uranium and thorium combined. This spurred the Curies to search for additional radioactive elements. They first separated out polonium from pitchblende in July 1898, and five months later, also isolated radium. German scientist Willy Marckwald successfully isolated 3 milligrams of polonium in 1902, though at the time he believed it was a new element, which he dubbed "radio-tellurium", and it was not until 1905 that it was demonstrated to be the same as polonium.
Which Lie Did I Tell? Which Lie Did I Tell? Which Lie Did I Tell?: More Adventures in the Screen Trade is a work of non-fiction first published in 2000 by novelist and screenwriter William Goldman. It is the follow-up to his 1982 book "Adventures in the Screen Trade". Originally to be called "The Big Campfire", the inspiration for the title came when Goldman was in the office of a Hollywood producer who was talking on the phone to one of his associates. Suddenly he cupped his hands over the receiver, snapped his fingers and said “Bill, Bill! Which lie did I tell?” The book