What were two accomplishments of the shang dynasty? written language mathematics metallurgy wool products

Written language and Metallurgy are the two both of these they are thought to be the first to do so and by the time the rest of the world saw these they were the best at it.

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.