What was technology like fourteen hundred years ago? Did the people know that the earth and the sky had seven layers? How did they understand the cosmological verses?

Dear Brother / Sister,

There was no technology like today at that time; a lifestyle based on agriculture and animal husbandry was common. Since Makkah was not suitable for agriculture, the people there were engaged in trade.

Before the Quran was sent down, people did not know that the sky had seven layers. The news given by the Quran related to the sky and the earth was not studied scientifically in that period. However, studies started in the following periods.

Since the Quran is a book that addresses all centuries, people who lived when it was revealed did not conduct scientific studies but they were freed from the wrong beliefs when they read the cosmological verses

"Allah is He Who raised the heavens without any pillars ..." (ar-Ra'd, 13/2)

The verse above eliminated the wrong belief that "the skies remained stable thanks to mountains".

People thought the sun remained fixed. However, the Quran stated that the sun was not fixed but that it was a celestial body that always moved at a certain speed. Science approved the Quran after many centuries passed:  

 "Allah is He Who raised the heavens without any pillars that ye can see." (Yasin, 36/38)

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