The answer is option 3: A technique for making porcelain was perfected.
The art of making porcelain prospered in both periods. A lot of innovations were made in forms, glazes, decorative techniques methods of production and kiln technology.
During the Tang Dynasty, porcelain kilns were constructed all over the country and a type of vessel with molded decorations on it became very popular, which was made using an "upside down" and the coal was used as kiln fuel.
By the Song period, the manufacturing process was standardized (base-making, glazing, ingredient control, and temperature maintenance). In addition, the industry was divided into five types of kilns that had several features for glaze coloring and pattern design.
If I recall correctly it wasn't an entire tribe, but rather a smaller group of people lead by Chief Leader Sitting Bull. One year prior to their attempted fleeing of US territory, the Battle of Little Big Horn took place in Montana against the 7th Cavalry which resulted in the deaths of George Custer and five troops. It was Lakota and Northern Cheyenne who fought. Sitting Bull feared retaliation for their victory and that's why they were trying to leave. I think they were called the Hunkpapa Lakota, a branching of the Native Lakota. I hope this helps somewhat.
Answer: an economic phenomenon where two parties each hold an item the other wants, so they exchange these items directly without any monetary medium!!
hope this helped :)
There were many factors that led to the rise of political machines in American cities in the 18th, 19th, and 20th centuries. One of the major factors that led to the rise of political machines was the rise of immigrant populations who sought to gain and increase their influence in the political realm and served as a powerful political tool for political machines. Political machines worked to enfranchise these voters through a system of patronage, and bribes and would bring them out on election days to support politicians who paid political bosses or awarded government privileges to. Positive aspects of this system were that it gave some increased level of representation of immigrant populations and worked to enfranchise these new political groups. However, these machines led to a high level of corruption and hurt the meritocracy of government institutions at the time.
