Muggle in the context of Mudblood

Harry Potter is a series of seven fantasy novels written by British author J. K. Rowling. The novels chronicle the lives of a young wizard, Harry Potter, and his friends, Ron Weasley and Hermione Granger, all of whom are students at Hogwarts School of Witchcraft and Wizardry. The main story arc concerns Harry's conflict with Lord Voldemort, a dark wizard who intends to become immortal, overthrow the wizard governing body known as the Ministry of Magic, and subjugate all wizards and Muggles (non-magical people).

The series was originally published in English by Bloomsbury in the United Kingdom and Scholastic Press in the United States. A series of many genres, including fantasy, drama, coming-of-age fiction, and the British school story (which includes elements of mystery, thriller, adventure, horror, and romance), the world of Harry Potter explores numerous themes and includes many cultural meanings and references. Major themes in the series include prejudice, corruption, madness, love, and death.

Lord Voldemort (/ˈvoʊldəmɔːr/ VOHL-də-mor, /-mɔːrt/ -⁠mort in the films) is a fictional character and the main antagonist in the Harry Potter series of novels by J. K. Rowling. He first appears in Harry Potter and the Philosopher's Stone (1997) and returns either in person or in flashbacks in each novel in the series except the third, Harry Potter and the Prisoner of Azkaban, in which he is only mentioned.

Voldemort, an anagrammatic sobriquet for his birth name Tom Marvolo Riddle, is the archenemy of Harry Potter, who according to a prophecy has "the power to vanquish the Dark Lord". After killing Harry's parents, Lily and James Potter, he attempts to murder the boy, but instead leaves him with a scar on his forehead in the shape of a lightning bolt. Nearly every witch or wizard dares not utter his name and refers to him instead with such monikers as "You-Know-Who", "He-Who-Must-Not-Be-Named", or The Dark Lord. Voldemort's obsession with blood purity signifies his aim to rid the wizarding world of Muggle (non-magical) heritage and to conquer both worlds, Muggle and wizarding, to achieve pure-blood dominance. Through his mother's family, he is the last descendant of the wizard Salazar Slytherin, one of the four founders of Hogwarts School of Witchcraft and Wizardry. He is the leader of the Death Eaters, a group of wizards and witches dedicated to ridding the Wizarding World of Muggles and establishing Voldemort as its supreme ruler.

In the fictional universe of Harry Potter, magic is depicted as a supernatural force that overrides the laws of nature. In humans, magical ability is inborn and is usually inherited. Most children of magical parents are magical themselves. These are called Half-Bloods/Purebloods and are common. Some children of "Muggle" (non-magical) parents also display magical abilities. These are called Muggleborns and these are uncommon. Children who are born to wizard parents but cannot perform magic are called Squibs although these are very rare. Known Squibs in Harry Potter are Mrs Figg and Argus Filch.

J. K. Rowling, the creator of Harry Potter, based many magical elements in her fictional universe on real-world mythology and folklore. She has described this derivation as "a way of giving texture to the world". The magic of Harry Potter was the subject of a 2017 British Library exhibition and an accompanying documentary. The exhibition, entitled Harry Potter: A History of Magic, was the first at the British Library to be based on a single series by a living author.

The fictional universe of the Harry Potter series of novels contains two distinct societies: the "wizarding world" and the "Muggle world". The term "Muggle world" refers to a society inhabited by non-magical humans ("Muggles"), while the term "wizarding world" refers to a society of wizards that live parallel to Muggles. The wizarding world is described as a veiled society wherein magic is commonly used and practised; the wizards live in self-enforced seclusion and hide their abilities from Muggles. The novels are set in 1990s Britain, which contains both Muggle and wizard communities. Any new works taking place in this universe are released under the Wizarding World brand.