<span>Both the Democratic and Republican Parties would support the idea that the United States should "stay together" at all costs, although many states such as the ones who seceded from the Union, felt differently. </span><span />
It seems that you have missed the given options for this question which are the following: <span>the Aztecs, the Chavins, the Incas, the Maya. Based on the given options, the correct answer would be THE MAYA. The early American culture that lived to the east of the Olmecs are the Maya. Hope this answer helps. Have a great day!</span>
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.
