The 15th century, the adventurer who in Europe in pursuit of spices and gold, one after another by sailing across the ocean to fight for colonies. However, in the way of navigation, seafarers have often been a God-like scurvy invasion and the loss of tens of thousands of lives.
In 1593, the British seamen died of scurvy are more than 10000, Spain, Portugal and other countries have four-fifths of the sailors died of scurvy. In these events before and after, but another miracle occurred. 153 years, a number of French explorers in Canada over the winter, 110 of them were suffering from scurvy, the local Indians to tell them to drink water soaked pine needles, in despair, the sick who drink this water, and even saved . 1772 to 1775, the United Kingdom, led by Captain Cook oceangoing vessels for the second time, when the explorers in the Pacific, which lasted 3 years, 118 crew members died only 1 person was, Captain Cook ordered the crew often to eat pickled vegetables, so that from the scurvy crew of the disaster.
Research on the treatment of scurvy, the first British doctor at Linde, the middle of the 18th century, his trial of fresh vegetables, fruit and medicine, suffering from scurvy sailors on medical tests. On one occasion, the United Kingdom in the treatment of his "five-ship sea" on board the crew of scurvy, the sailors are divided into a number of selected 6 groups of different treatment methods, such as different food, drugs and physical therapy methods. Unexpected results is that the medication the patient has no signs of a rebound, on the contrary, the consumption of lemon is a group of patients served as a "panacea", the disease in addition to Dayton, quickly recovered.
More than 40 years later, the British Navy used this method, the provisions of sailors into the sea during the quantitative per person per day to drink water with lemon leaves. After only two years, the British Navy on the extinction of the scurvy. Which the British used "lemon persons" interesting title to call their own sailors, and sailors.