Requested is a synonym for summon
Ulysses Grant (born 1822- died 1885) commanded the victorious Union army during the American Civil War 1861-1865 and served as the 18th U.S. president from 1869 to 1877. Also he was born in Ohio and fought in the “Mexican-American” War from 1846-1848
War elephants<span> played a critical role in several key battles in antiquity, but their use declined in the Middle Ages. With the spread of firearms in the early </span>modern period<span>, military </span>elephants<span> were restricted to non-combat engineering and labour roles, and some ceremonial uses.</span>
I think b makes the most sense. The press would have most likely helped many Protestants share their works easier, such as Martin Luther with the 95 theses.