Context: Hokkien originated from Quanzhou. After the Opium War in 1842, Xiamen (Amoy) became one of the major treaty ports to be opened for trade with the outside world. From mid-19th century onwards, Xiamen slowly developed to become the political and economical center of the Hokkien-speaking region in China. This caused Amoy dialect to gradually replace the position of dialect variants from Quanzhou and Zhangzhou. From mid-19th century until the end of World War II, western diplomats usually learned Amoy Hokkien as the preferred dialect if they were to communicate with the Hokkien-speaking populace in China or South-East Asia. In the 1940s and 1950s, Taiwan also held Amoy Hokkien as its standard and tended to incline itself towards Amoy dialect.

Question: Where did Hokkein originate?
Answer: Quanzhou

Question: What year was the Opium war?
Answer: 1842

Question: What is another name for Xiamen?
Answer: Amoy

Question: What port became one of the major treaty ports after the Opium War?
Answer: Xiamen

Question: What dialect did western diplomats learn to communicate with the Hokkien speaking people in China?
Answer: Amoy Hokkien

Question: After the 1940's and 1950's Opium War, what became a major treaty port?
Answer: Unanswerable

Question: What did Zhangzhou slowly develop into?
Answer: Unanswerable

Question: In the 1940's and 1950's what did Quanzhou use as its standard dialect?
Answer: Unanswerable

Question: In what year was South-East Asia war?
Answer: Unanswerable

Question: Where did Taiwan originate from?
Answer: Unanswerable