Around 1890, which Scottish author bought an estate in Samoa that he called Vailima, or "five streams"?

In 1862, which doctor invented a hand-cranked, multi-barrel machine gun? Around 1870, Christopher Sholes and partners developed the first practical version of which machine, with a QWERTY keyb… In the early 1870s, which plant breeder developed his famous potato on farmland in Massachusetts? Which sharpshooter beat her future husband, marksman Frank Butler, in a shooting match? Eli Janney's automatic version of which railroad device replaced the dangerous link-and-pin type? Around 1890, Thomas Edison campaigned to have which invention named after his rival George Westinghouse? Around 1898, Frederic Remington asked Kicking Bear, a veteran of which battle, to make a painting of it? Around 1900, which inventor built a giant electrical coil but never completed a planned worldwide wireless transmitter?