The Hajj is based on a pilgrimage that was ancient even in the time of Muhammad in the 7th century. According to tradition, elements of the Hajj trace back to the time of Abraham (Ibrahim), around 2000 BCE.
There are more than 100,000 air-conditioned tents which provide temporary accommodation to visiting pilgrims. The Teflon-coated tents can withstand temperatures of up to 700 degrees Celsius.
It is a miraculously-generated source of water from God, which began thousands of years ago when Abraham's (Ibrāhīm) infant son Ishmael (ʼIsmāʻīl) was thirsty and kept crying for water. Millions of pilgrims visit the well each year while performing the Hajj or Umrah pilgrimages, in order to drink its water.