A sandwich is a kind of food with stuffing between two pieces of bread. It is generally believed that this kind of food was invented by the British, but its historical origin is very complicated. Sandwiches have different names and practices in different cultures, countries and regions.

In Britain, sandwiches originated from the banquet culture of 18 century. Legend has it that at a banquet, the Fourth Earl of Sandwich asked the chef to make a simple and portable food for him so that he could continue playing cards in the casino without stopping to eat. So the chef drilled all kinds of ingredients into the bread, and this simple food was named "sandwich".

Sandwiches are as popular as hamburgers in America. People can see them eating sandwiches in various occasions, such as work, picnics, travel and so on. The basic ingredients of a sandwich are bread, meat (such as ham, roast beef or roast chicken), cheese, lettuce and sauce. Americans often regard sandwiches as a fast food or lunch.

In France, sandwiches are called "French sandwiches" or "French rolls". They are usually made on French bread, and the fillings can be all kinds of meat, cheese, lettuce and sauce.

In Spain, sandwiches are called "Bagert" This is a sandwich made of bread with various ingredients, such as ham, cheese and vegetables.

In Japan, sandwiches are called "sandwiches" or "three pounds". They are usually made of white bread, meat, eggs, vegetables and so on. Convenience stores and supermarkets in Japan sell sandwiches of various flavors, including breakfast sandwiches, lunch sandwiches and dinner sandwiches.

Generally speaking, sandwich is a very popular food, whether in Britain, America, France, Spain, Japan or other places. This noun has different translations in different languages and cultures, but the basic concept is the same.