Oases...continued

 Deserts are dotted with oases. Providing great shade and water for animals & people.  Nomads for centuries traveled from oasis to oasis searching for water, and shade (vegetation).  Palm trees commonly grew in oases.  The palm leaves were the best shade givers. 

Oases dwellers grew many fruit including, dates, peaches, & grains mostly to make some sorts of bread.  Eventually, the date palm tree became very invaluable.