Daniel Defoe is imprisoned on charges of seditious libel.

Daniel Defoe was an English writer, merchant and spy. He is most famous for his novel Robinson Crusoe, published in 1719, which is claimed to be second only to the Bible in its number of translations. He has been seen as one of the earliest proponents of the English novel, and helped to popularise the form in Britain with others such as Aphra Behn and Samuel Richardson. Defoe wrote many political tracts, was often in trouble with the authorities, and spent a period in prison. Intellectuals and political leaders paid attention to his fresh ideas and sometimes consulted him.

Seditious libel is a criminal offence under common law of printing written material with seditious purpose – that is, the purpose of bringing contempt upon a political authority. It remains an offence in Canada but has been abolished in England and Wales.

May 21 is the 141st day of the year in the Gregorian calendar; 224 days remain until the end of the year.