Cigarette sales surged again with the introduction of the "White Burley" tobacco leaf and the invention of the first practical cigarette-making machine, sponsored by tobacco baron James Buchanan "Buck" Duke, in the late 1880s.

CNN: A brief history of tobacco

The young Bush threw his weight around as necessary, serving as "loyalty thermometer" and blunt instrument, coming down hard on leakers, loose cannons and snarky reporters, mediating staff disputes from a plainly decorated office, where he chewed an unlighted cigar and spat bits of tobacco leaf in the general direction of a foam coffee cup.

CNN: ASIANOW - TIME Asia

In 2010, Leicester City Council began a campaign to stop paan, a tobacco-leaf mixture, being spat out on the streets.

BBC: Leicester City Council wardens to fine street spitters

Rice, barley, dairy products, and leaf tobacco farming operates under high tariff and non-tariff barrier protection.

FORBES: WTO Critique Of Japanese Agriculture

Farhana Rejwan, from east London, has been chewing tobacco wrapped in betel leaf for over 50 years and has struggled to give it up.

BBC: Poor labelling of chewing tobacco hides risks

The rare leaf is a part of the tobacco plant called the medio tiempo, taken from the upper leaves of the plant, but which not every plant produces, making it rare.

CNN: STORY HIGHLIGHTS

Paan, a mixture of tobacco, nuts and spices, is wrapped in a leaf and mainly chewed by members of the Asian community.

BBC: Leicester City Council wardens to fine street spitters