A phenomenon called' Sandwich'

The ‘sandwich’ is one of the most famous English words known by everyone. It functions as a noun and usually prefers to have its name pronounced as ‘SAND wich’.

But why it is considered to be a phenomenon? I’ll explain you why. First of all, let’s start to explain that a sandwich is made by two loaf of bread with slice of salami or any different kind of cooked meats, and what is important to know is that every single country has a different name for it, but no one seems to take care about it, because they do not use their original name and prefer to use ‘sandwich’ as being their proper name. Honestly, I think it’s weird and I’m against of things like that, because people are not conscious that they will lose their identity by using these foreign words as a part of their language, and it is just one example of many others.