Why did the romans put a hole in the top of their roof? ?

The correct answer to this open question is the following.

We are referring to one of the most beautiful buildings constructed by ancient Rome: the Pantheon; an impressive Roman building with a dome that has a hole at the top of the dome.

The hole served to the following purpose. Originally, it was the only source of light. The Sun was the source of light and its rays entered the building through the hole. Today, the Pantheon is a Catholic church and is one of the most famous touristic attractions in Rome.

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.