What caused Soto's disease was the crossing of the Mississippi River.
Explanation:
Hernand de Soto was a famous and influential Spanish explorer and conqueror who had a strong influence on the American continent, even reaching the territories of North America, being the European explorer to find the Mississippi River.
As you may already know, the misssisssipi river is one of the widest and longest in the territory where the USA is today. For this reason, the crossing of de Soto and his men to this river was very laborious, difficult and exhausting which made De Soto sick, with severe fevers, dying soon after. He chose Moscoso Alvarado to replace him as leader of the expedition, which made Moscoso famous.
Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I. ... Germany also believed that the United States had jeopardized its neutrality by acquiescing to the Allied blockade of Germany.
Why was it so difficult to pass laws under the Articles of Confederation? All the states had to agree for a law to pass. The government did not have a Congress where laws can pass. ... Congress gave too much power to the Executive Branch.