Answer:
Many aspects of Roman Law and the Roman Constitution are still used today. These include concepts like checks and balances, vetoes, separation of powers, term limits, and regular elections. Many of these concepts serve as the foundations of today's modern democratic governments.
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Black Death was spread mainly through the fleas on rats. Fleas would bite the infected rat, then jump onto humans, biting them and causing them to become infected. Rats were mostly found on ships than running around on land
Opium became a major issue of contention between the Qing dynasty and the British.
