Muggle-Born is the description given to witches and wizards who have non-magical parents. Magical ability can manifest in anyone. Muggles children often show signs of magic at a young age, when unexplainable events happen around them. Their magic is confirmed at age eleven when they receive a letter from Hogwarts School of Witchcraft and Wizardry.
Muggle-Borns are as magical as those born into wizarding families. Hermione Granger is the only magical member of her family; her parents are Muggles and work as dentists. She is one of the most talented witches of her generation.