In 1348, a cruel plague (the Black Death) struck the prosperous Florence, killing more than 100,000 people. In the whole of Europe, the number of people who died from the disease was as high as 75 to 200 million. The following year, Boccaccio wrote The Decameron with this plague as the background. The story is about seven women and three men who went to a villa on the hill outside Florence to avoid the plague. These ten men and women lived in a pleasant garden. In addition to singing and dancing, they decided to tell a story every day to get through the hot days. In the end, they told a total of 100 stories, which is the content of The Decameron.

Here, there is a story that most people in medieval Europe believed in Christianity. There was a Jew doing business in Europe. His friend persuaded him to convert to Christianity so that it would be easier to do business. He said: I can convert, I want to go to the Vatican to have a look. His friend was shocked because the Vatican, the headquarters at that time, was very corrupt. He was afraid of being disappointed after going there, so he insisted on going. As a result, he converted to Christianity when he came back. His friend asked him why: He said that the Vatican could survive despite being so corrupt, so he believed in the existence of the Lord! Therefore, the things we cannot see or understand may be because we do not understand things. It is good to be open and tolerant to new things and new concepts.