<span>1 - There was a Standardized set of rules
2 - There was Standardized transportation
3 - There was a single written language.</span>
Uncle Tom's Cabin is a novel written by Harriet Beecher Stowe and published in 1952.
It's an anti-slavery novel, written to raise sympathy to slaves and to protest against slavery, convincing people that slavery was not good and contrary to Christian values.
In 1939 (Nazi-Germany) and Soviet Union agreed to split Poland.
The treaty that specified the conditions of this split is refered to as the Molotov–Ribbentrop Pact, after the Foreign ministers of the two countries that signed it. It was signed on 23. August 1939 and it was at the time officially claimed that it only determined that the two countries would not engage in aggression with each other. At the time the split of Poland (and the division of other countries such as Lithuania and Estonia between the two powers) was kept secret.
