Sausages
The word sausage originally comes from the Latin word salsus, which means salted or preserved. In the days of old people did not have refrigeration to preserve their meat and so making sausage was a way of overcoming this problem.
Dry sausage was born as a result of the discovery of new spices, which helped to enhance, flavor and preserve the meat. Different countries and different cities within those countries started producing their own distinctive types of sausage, both fresh and dry. These different types of sausage were mostly influenced by the availability of ingredients as well as the climate.
Some parts of the world with periods of cold climate, such as northern Europe were able to keep their fresh sausage without refrigeration, during the cold months. They also developed a process of smoking the sausage to help preserve the meat during the warmer months. The hotter climates in the south of Europe developed dry sausage, which did not need refrigeration at all.
Basically people living in particular areas developed their own types of sausage and that sausage became associated with the area. For example Bologna originated in the town of Bologna in Northern Italy, Lyons sausage from Lyons in France and Berliner sausage from Berlin in Germany.