Benjamin Disraeli was British prime minister twice. Which rival held the office four times?

Between 1856 and 1860, nearly 3,000 members of which faith set out from Iowa and Nebraska to Utah pulling handcarts? Between 1856 and 1863, which monk tested thousands of pea plants in his monastery garden? Between 1865 and 1885, which empire took over the area of present-day Turkmenistan? In the years after the Civil War, huge numbers of which cattle were driven up the Chisholm Trail from Texas to Kansas? In the 1870s, Friedrich Nietzsche visited Richard Wagner in which Bavarian town northeast of Nuremberg, where the compo… Between 1883 and 1885, Nietzsche published a four-part work about which wandering teacher? Between 1892 and 1924, most immigrants to the U.S. came through facilities on which island? Between 1894 and 1901, followers of which political philosophy assassinated leaders of France, Spain, Italy and the U.S…