“Proclaim (or read) In the name of thy Lord and Cherisher, who created.
Created man, out of a leech-like clot.”
The second embryonic growth stage is named : “Alaghe” in Arabic. Alaq in Arabic has different meanings: closed-clot, hung and leech.
It is now scientifically proven that fetus in this stage of it’s growth is hanging on uterus as a closed-clot, and feeding from mother’s blood like a leech.
This is a fact mentioned by Quran 1400 years ago.