I want to know the answer to the following question:
What year was Doctrina Christiana en letra y lengua china written?
All the background I'm provided with is that "Xiamen University has also developed an alphabet based on Pinyin, which has been published in a dictionary called the Minnan Fangyan-Putonghua Cidian (閩南方言普通話詞典) and a language teaching book, which is used to teach the language to foreigners and Chinese non-speakers.". Is that enough to answer the question?
Answer: no