They were told they had a rare form of syphilis.
Answer:
Steppe nomads would invade the settled communities to take control of pasture lands. Settled communities were in the fear of new or next invasion. The nomad's trade was not related to the gain but related to the goods provided themselves that they don't have that time Nomads were from two different cultures and districts.
Nomads speak a Turkic language. There were many nomads group who traveled on the silk road.
Water has a higher heat capacity than soil and rock, so the ocean takes much longer to heat and to cool than the land. Coastal areas will generally have more moderate temperatures than inland areas because of the heat capacity of the ocean.