It is known that the Qur'an was revealed to our Prophet Muhammad (peace be upon him) in the seventh century. The scientific facts revealed today have been given in the Qur'an. The fact that the Earth is spherical is also mentioned in the Book of Allah because for centuries people believed that the Earth was flat. Allah said, “He created the heavens and the earth with truth. He makes the night to go in the day and makes the day to go in the night. He has subjected the sun and the moon. Each running (on a fixed course) for an appointed term. Verily He is the All-Mighty, the Oft-Forgiving.” (Qur'an, 39:5) The Arabic word ‘Yukawwar' means ‘roll' according to Al-Mawrid Arabic-English dictionary. In Edward Lanes Arabic-English dictionary it means going round many times. Night and day moves with the same speed and they rotate around the Earth on its axis. It proves the earth is spherical. Thus, due to rolling of the earth from west to east continually, a part of it faces the sun and the other part hides it from the sun. In this way day and night continuously take place in all places of the world. Thus, the Qur'an has proved the spherical shape of the Earth with its rotation 1,400 years ago. __