It's most likely the principle of Checks and Balances.
Answer:
Syphilis
Explanation:
Syphilis, it was treated because Lewis and Clark brought a vaccine, for it. They where infact well prepare to treat the disorder.
Every communist country ever,
China, Venezuela, Cuba, ect
It would be "coconuts" that represent a major export of many islands in oceania, since the climate in this large region is very warm and highly conducive to growing this crop.
