Answer:
The use of the abacus was expanded and refined.
Explanation:
The abacus was invented during the Yuan Dynasty which lasted between 1206AD till 1368AD and then it was expanded and refined by the Ming Dynasty (1368AD-1644AD).
There have been archaeological proof of this as the writings of Tao Zongyi describes in his book that the new servants, unlike the older and more experienced ones were "just like abacus heads" and that they would not move unless they were made to move. This bears credence to the fact that the abacus was already widely used then.
An abacus was used to count numbers.
Russia Communism was hated by Hitler because he saw Bolshevism as a construct of the Jews. Additionally, Communists around the globe were greatly emboldened by the new Soviet state so they began rebellions against their governments following WWI. Many German citizens did not like this behavior. Later, the soviet state of Russia fell and de-Stalinization occurred refers to a process of political reform in the Soviet Union that took place after the death of long-time leader Joseph Stalin in 1953.
Answer:
"Negro history week" was the origin of black history month, it was originally only going to be a of a week long, rather than a month.
Explanation:
Answer:
The answer is C
Explanation:
Why would sheep herding be important?
Answer: C. change in cost of resources
