According to the traditional Islamic view, the Qur'an (Koran) began with revelations to Muhammad by the angel Gabriel in 610. The history of the Qur'an began when its verses were revealed to the Muhammad. The rise of Islam began around the time Muslims took flight in the Hijra, moving to Medina.
Caravans were used for a. building the pyramids. c. invading other countries. b. overland trade. d. worshipping the sun. Caravans were used for overland trade.
Even in its decline in 1908 this latter caravan numbered 20,000 camels. Ropes, passed through the nose ring and tied to the saddle of the camel in front, were used to fasten the camels together in strings of up to 40. Three or four strings might travel abreast, as was usual with nomad drivers, or the whole caravan might travel in one long line, as in some Chinese caravans.