Idioms exist in every language. They are words or phrases that aren't meant to be taken literally. For example, if you say someone has "cold feet," it doesn't mean their toes are actually cold. Rather, it means they're nervous about something. Idioms can't be deduced merely by studying the words in the phrase.
Answer:
It was basically the transitioning from the middle ages to the modern days with the 15 and 16th centuries as people lead different social lifes, buildings, writing, paintings, science, mostly just changing how society was.
Explanation:
Bivalves, compressed bodies enclosed by a shell consisting of two hinged parts. Bivalves include clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater.