Till the __________, white American settlements were confined to a small narrow strip of coastal land in the east.

Lin Ze-Xu, special commissioner at Canton in 1839, estimated that there were over ____________ million opium smokers in China.

It was in about the ___________ that farmers in many parts of England growing turnip and clover.

Who was responsible for introducing opium to China? 

The threatening letters cultivated widely in the north west of England was signal by the mythical name