anchor: The attitude expressed by Emperor Qianlong at Britian's first attempt to open trade with China in 1793 continued to   We possess all things,  said the emperor,  I set no value on objects strange or ingenious, and have no use for your country's manufactures. 
positive: British first attempted to trade with China in 1793 but was declined.
negative: Britain first attempted to open trade with China in the 1400's and was accepted.