During the Late Middle Ages:
*Weather was bad, crops failed, and people starved.
*The Hundred Years’ War was fought between England and France.
*In 1347 the , known as the Black Death came to Europe
killing an estimated one-third to one-half of Europe’s population. At that time, no
one knew the cause of the disease.

dark plague, disease, deadly disease, pandemic

Explanation:

these could all apply to the blank space... not sure if it can be seen as helpful but ..

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.

answer; the sound of a train whistle makes a woman think of an old friend; //

the smell of grass makes a by feel that spring is the best; (apex);