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The pronounced divergence between literary and colloquial pronunciations found in Hokkien dialects is attributed to the presence of several strata in the Min lexicon. The earliest, colloquial stratum is traced to the Han dynasty (206 BCE - 220 CE); the second colloquial one comes from the period of the Southern and Northern Dynasties (420 - 589 CE); the third stratum of pronunciations (typically literary ones) comes from the Tang Dynasty (618907 CE) and is based on the prestige dialect of Chang'an (modern day Xi'an), its capital.

When was the Tang Dynasty?
Answer: 618907 CE
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Lower Manhattan is the third-largest central business district in the United States and is home to the New York Stock Exchange, on Wall Street, and the NASDAQ, at 165 Broadway, representing the world's largest and second largest stock exchanges, respectively, when measured both by overall average daily trading volume and by total market capitalization of their listed companies in 2013. Investment banking fees on Wall Street totaled approximately $40 billion in 2012, while in 2013, senior New York City bank officers who manage risk and compliance functions earned as much as $324,000 annually. In fiscal year 201314, Wall Street's securities industry generated 19% of New York State's tax revenue. New York City remains the largest global center for trading in public equity and debt capital markets, driven in part by the size and financial development of the U.S. economy.:3132 In July 2013, NYSE Euronext, the operator of the New York Stock Exchange, took over the administration of the London interbank offered rate from the British Bankers Association. New York also leads in hedge fund management; private equity; and the monetary volume of mergers and acquisitions. Several investment banks and investment mangers headquartered in Manhattan are important participants in other global financial centers.:3435 New York is also the principal commercial banking center of the United States.

In 2012, how many investment banking fees were paid out to Wall Street?
Answer: $40 billion
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Due to technical limitations, the original ReWritable CD could be written no faster than 4x speed. High Speed ReWritable CD has a different design, which permits writing at speeds ranging from 4x to 12x. Original CD-RW drives can only write to original ReWritable CDs. High Speed CD-RW drives can typically write to both original ReWritable CDs and High Speed ReWritable CDs. Both types of CD-RW discs can be read in most CD drives. Higher speed CD-RW discs, Ultra Speed (16x to 24x write speed) and Ultra Speed+ (32x write speed) are now available.

How fast could the first ReWritable CD be written?
Answer:
4x speed