A sandwich is the perfect thing when you're hungry and its pretty cheap .... there was a time in the early part of the 19th Century when many people in Britain couldn't afford even this staple food and ended up getting poorer and left hungrier. In 1815 the British Government introduced the Corn Laws. They introduced these laws as a way to prevent import of cheap foreign grain from bringing the price of British grain down and risking British farmers and their incomes. Until 1815,, Britain freely traded with neighboring countries .... the poor people of Britain relied on cheap imported grain rather than the more expensive domestically produced grain. In the end, many couldn't afford to buy any grain and went hungry.