instruction:
This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
question:
In the 1990s, marked by the liberalization of language development and mother tongue movement in Taiwan, Taiwanese Hokkien had undergone a fast pace in its development. In 1993, Taiwan became the first region in the world to implement the teaching of Taiwanese Hokkien in Taiwanese schools. In 2001, the local Taiwanese language program was further extended to all schools in Taiwan, and Taiwanese Hokkien became one of the compulsory local Taiwanese languages to be learned in schools. The mother tongue movement in Taiwan even influenced Xiamen (Amoy) to the point that in 2010, Xiamen also began to implement the teaching of Hokkien dialect in its schools. In 2007, the Ministry of Education in Taiwan also completed the standardization of Chinese characters used for writing Hokkien and developed Tai-lo as the standard Hokkien pronunciation and romanization guide. A number of universities in Taiwan also offer Hokkien degree courses for training Hokkien-fluent talents to work for the Hokkien media industry and education. Taiwan also has its own Hokkien literary and cultural circles whereby Hokkien poets and writers compose poetry or literature in Hokkien on a regular basis.
answer:
When did Taiwanese Hokkien have a fast change in development?


question:
Advances were made in irrigation and farming, using new technology such as the windmill. Crops such as almonds and citrus fruit were brought to Europe through al-Andalus, and sugar cultivation was gradually adopted by the Europeans. Arab merchants dominated trade in the Indian Ocean until the arrival of the Portuguese in the 16th century. Hormuz was an important center for this trade. There was also a dense network of trade routes in the Mediterranean, along which Muslim countries traded with each other and with European powers such as Venice, Genoa and Catalonia. The Silk Road crossing Central Asia passed through Muslim states between China and Europe.
answer:
which crops were brought to europe from the Muslim World?


question:
In the diffuse-porous woods, the demarcation between rings is not always so clear and in some cases is almost (if not entirely) invisible to the unaided eye. Conversely, when there is a clear demarcation there may not be a noticeable difference in structure within the growth ring.
answer:

What kind of wood often has ring divisions that can't even be seen by looking at it?