The Mongols spread the use of gunpowder.The Mongols controlled both China and Russia.<span>Pax Mongolica encouraged trade along the Silk Road. I would say these are the main effects of the Mongol incursion into Europe and Asia plus the inadvertent introduction of the bubonic plague of infected rats from Asia to Europe.</span>
The commonwealth games were not held during 1945 and 1946 because of World War 2. Ever since then, they've been held regularly every 4 years.
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B. They discover that their mother has sexual relationships outside of marriage
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