Answer:
In the sentence "The Black Death in the mid-1300s struck Europe and Asia," the word "in" is a preposition.
A preposition is a word that shows the relationship between a noun or pronoun and other words in a sentence. It usually indicates location, direction, time, or manner.
In this sentence, the preposition "in" is used to indicate the time when the Black Death occurred. It specifies that the Black Death occurred "in the mid-1300s."
The prepositional phrase "in the mid-1300s" provides information about the time period in which the Black Death took place.
I hope this helps clarify the use of the preposition "in" in the given sentence.
Let me know if you have any more questions!