A. Urban II
These incursions prompted the emperor of Byzantium, Alexius I Comnenus to send a delegation to Piacenza, Italy, asking Pope Urban II in March 1095 for help against the Turks. On November 27, 1095, in Clermont, France, Pope Urban II called for a crusade to help the Byzantines and to free the city of Jerusalem.
Because Hoover wanted to end the Great Depression but I'm not entirely sure
After some early trading expeditions, the first Dutch<span> settlement in the Americas was founded in 1615: Fort Nassau, on Castle Island along the Hudson, near present-day Albany. The settlement served mostly as an outpost for trading in fur with the native Lenape tribespeople, but was later replaced by Fort Orange.</span>