Welcome to Wikipedia. Everyone is welcome to contribute to the encyclopedia, but when you add or change content, as you did to the article First Opium War, please cite a reliable source for the content of your edit. This is particularly important when adding or changing any facts or figures and helps maintain our policy of verifiability. Take a look at Wikipedia:Citing sources for information about how to cite sources and the welcome page to learn more about contributing to this encyclopedia. Thank you. Piano non troppo (talk) 20:17, 11 June 2010 (UTC)
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