Summer rains and bad weather in europe in the early fourteen century resulted in

Famine

In the early 14th century, Europe encountered a series of famines, often referred to as the Great Famine. Abundant rains in the spring of 1315 were partly responsible, along with cool warmth. This did not enable the cereals to ripen, which led to crop failures. It also recommended that straw and hay could not be preserved for animals and that salt was not available because the ocean could not evaporate. Moreover, the population had expanded very suddenly prior to 1300, so there was an additional requirement on limited sources.

the process is called revolution because it was a process of great economic-social transformations that began in england in the xviii century.

the industrial mode of production spread throughout much of the northern hemisphere throughout the xix and early xx centuries.

the effect of this revolution was the distance between the countries, with respect to economic and political power.   after all, not all industrialized at the same time, remaining in the condition of suppliers of raw materials and agricultural products to the industrialized countries.

these differences mark to this day the nations of the world that are divided between developed and developing countries. one way to measure whether a country is advanced is to assess how industrialized it is.

they wanted the u.s. to fight on the side of the central powers.