Muslims believe the Quran was verbally revealed by God to Muhammad through the angel Gabriel (Jibril), gradually over a period of approximately 23 years, beginning on 22 December 609 CE, when Muhammad was 40, and concluding in 632, the year of his death. Muslims regard the Quran as the most important miracle of Muhammad, a proof of his prophethood, and the culmination of a series of divine messages that started with the messages revealed to Adam and ended with Muhammad. The word "Quran" occurs some 70 times in the text of the Quran, although different names and words are also said to be references to the Quran. 

According to the traditional narrative, several companions of Muhammad served as scribes and were responsible for writing down the revelations. Shortly after Muhammad's death, the Quran was compiled by his companions who wrote down and memorized parts of it. These codices had differences that motivated the Caliph Uthman to establish a standard version now known as Uthman's codex, which is generally considered the archetype of the Quran known today. There are, however, variant readings, with mostly minor differences in meaning. QUESTIONS:

Q1:
1. What book does the article discuss?
2. What religious text is the article about?
3. What book is the article about?
Q2:
1. How long did the Quran take to complete?
2. How much time did it take to write the Quran?
3. How much time was spent writing the Quran?
Q3:
1. Who transcribed the Quran?
2. Who were the scribes that wrote down the Quran?
3. Who was responsible for transcribing the Quran?
Q4:
1. Whose message were the scribes creating the Quran out of?
2. Whose words are transcribed in the Quran?
3. Whose message is the Quran a transcription of?
Q5:
1. Who spoke to Muhammed?
2. Who gave a message to Muhammed?
3. What higher power was communicating with Muhammed?
Q6:
1. Who did God use as an intermediary to speak to Muhammed?
2. Through whom did God communicate with Muhammed?
3. What being did God use to speak with Muhammed?
Q7:
1. What was the year of Muhammed's death?
2. When did Muhammed pass?
3. In what year what Muhammed laid to rest?
Q8:
1. At approximately what age did Muhammed pass away?
2. About how old was Muhammed when he died?
3. How old was Muhammed, approximately speaking, when he passed?
Q9:
1. Who standardized the Quran?
2. Who created a standardized version of the Quran?
3. Who established a single version of the Quran?
Q10:
1. What is Caliph Uthman's version of the Quran called?
2. What is the name for Caliph Uthman's Quran?
3. How is Caliph Uthman's standardized Quran referred to?
