Oases are natural springs or wells in deserts, and they provide water, which is essential for survival. Traders traveling through deserts would need to know the locations of oases to replenish their water supplies and to rest their animals.
2. Camels:
Camels are well-adapted to desert environments and can travel long distances without water. They can also carry heavy loads, making them ideal for transporting goods. Traders who wished to take a land route to the eastern Mediterranean would need to have camels or other pack animals to transport their goods.
3. Military posts:
Military posts provided security and protection for traders traveling through dangerous areas. They could also serve as places for traders to rest and resupply. Traders would need to be aware of the locations of military posts to ensure their safety.