and slaves (brought from Africa to the sugar colonies, along with some enslaved servants in England itself) formed the backbone of imperial trade. One in nine Englishmen lived in London near the end of the Stuart period. However, plagues were even more deadly in a crowded city—the only remedy was to move to isolated rural areas, as Isaac Newton of Cambridge University did in 1664–66 as the Great Plague of London killed as many as 100,000 Londoners. The fast-growing metropolis was the centre of politics, high society and business. As a major port and hub of trade, goods from all over were for sale. Coffee houses were becoming the centres of business and social life, and it has also been suggested that tea might have played its own part in making Britain powerful, as the antiseptic qualities of tea allowed people to live closer together, protecting them from germs, and making the Industrial Revolution possible. These products can be considered as beginning the consumer society which promoted trade and brought development and riches to society. Newspapers were new and soon became important tools of social discourse, and the diarists of the time such as Samuel Pepys and John Evelyn are some of the best sources we have of everyday life in Restoration England. Coffee houses grew numerous and were places for middle-class men to meet, read the papers, look over new books and gossip and share opinions. Thomas Garway operated a coffee house in London from 1657 to 1722. He sold tea, tobacco, snuff, and sandwiches. Businessmen met there informally; the first furs from the Hudson's Bay Company were auctioned there. The diet of the poor in the 1660–1750 era was largely bread, cheese, milk, and beer, with small quantities of meat and vegetables. The more prosperous enjoyed a wide variety of food and drink, including tea, coffee, and chocolate. Crime and punishment Historians examining the period 1300–1800 have detected a high level of continuity in their studies of crime and punishment. They have used local records, as well as literary sources, to explore how crime was defined and detected, the changes in the court system, the central importance of elite attitudes toward the poor and dangerous classes, professional criminals, and the amateur and community element in law enforcement before the establishment of police forces in the 19th century. The Black Act of 1723, sponsored by Robert Walpole, strengthened the