Why are the cities of Mecca and Medina important to the Muslim faithful?

Located in the Hejaz on the northern Arabian Peninsula, Mecca and Medina are the cities where the heart of Islam beats. ... Every square inch of these holy lands, kept alive in the hearts of Muslims and visited on the Hajj and Umrah pilgrimages, is also filled with mementos and monuments from the earliest period of Islam.

Explanation:

the industrial revolution pushed the world into modern industrialization. it changed the course of history profoundly. it caused rapid urbanization and pushed cities and countries into development. the industrial revolution began in great britain with a series with new inventions which led to the creation of machines and mass production.

this caused the country to gain wealth and money and become an international superpower. it improved transportation and manufacturing inside the country, pushed people to live in urban areas and britain to become the most powerful nation in the world for a while.