Why do we have last names?

Last names help people tell one family or person from another, especially once towns became too big for first names alone. Many began as clues: a parent's name, a job, a place, or a trait people noticed. Over time, those extra labels became family names that stayed.

That means a classroom roll can carry old bread ovens, metal workshops, rivers, hills, and great-great-grandparents hiding in plain sight. A child named Miller may never grind grain, but the name still whispers about someone long ago whose everyday work helped name the family.