Mr. Sandwich

Did you know that the sandwich is named after an English man who lived in the 1700s? I found it in the dictionary. I was looking at the word, as I often do with them in their written form, and I thought, why would anyone name something edible after something that would be so horrendous to chew such as sand? Just image sand in your sandwich. Augh. Well, it is named after a man, who would also be pretty awful to chew, though not as bad for your teeth