king Leopold promised free trade and humanitarianism but... millions of natives were killed and abused to meet his demand for rubber millions of natives rebelled against him and his enforcers. C his rule was marked by rebellions against him. his rule was taken away from him.

when a country suffers, for example, a drought period, the market product is affected for a low offer, in this case, potatoes; the government has to tax to the households, which have to give more money for the potatoes which they consume, that situation make them consume substitute goods even through loans, it could increase the financial market movement and the inflationary phenomena, the business has to increase salaries in order to the employees could buy a more expensive food (potatoes) and in order to inflation tha business had to buy expensive supplies in the factor market, while the rest of the world have to gain more money to consume the same amount of potatoes.

thing is, i'm afraid, you can't.

the most you can do is log out and never log in again.

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.