The Himalayan Mountains created a natural protective barrier. Many civilizations have benefited from natural protective barriers. Egypt had the desert, Switzerland had the Alps, the Alps saved Rome too.
Answer: it was most likely carried by fleas living on the black rats that traveled on all merchant ships, spreading throughout the Mediterranean Basin and Europe
Explanation: The Black Death is thought to have originated in the dry plains of Central Asia, where it traveled along the Silk Road, reaching Crimea by 1343
The lands used in agriculture
"Feudus" is a term from latin and describes the relationship between the nobil and a vassal. Tha vassal worked the nobil land in exchange for products, money or other obligations