The entire Quraan Majeed was delivered by Angel Gabriel to Prophet Muhammad PBUH between 570-632 CE. The whole revelation took 23 years. Every Muslim is required to read the Quraan at least once a day.
The Holy Quraan was written in Arabic script. Since there is no typeface, it has been written by hand by skilled calligraphers. Also, correct recitation of the Quraan should be done. For this, symbols are added to the Arabic script to guide the reader recite correctly.