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.
The word caravaning is also (albeit rarely) used to mean travelling together as a group in British English, leading to a different meaning. In Guatemala, Mexico and other Latin American countries, the word used to describe this kind of vehicle is Casa Rodante (Rolling House).