Answer:
Explanation:
A plague is an infectious disease that spreads among a
large population of people.
• Plagues can be spread in one of two ways: through
direct physical contact, or by airborne transmission.
• The spread of Bubonic Plague, or Black Death,
originated in Asia. Mongol armies spread the disease
throughout China as they conquered cities during the
1200s.
• As the Mongols expanded the boundaries of their
empire into Europe, they carried the plague with
