"Hogwarts was founded over a thousand years ago - the precise date is uncertain - by the four greatest wizards of the age. The four school houses are named after them: Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw, and Salazar Slytherin.
They built this castle together, far from prying Muggle eyes, for it was an age when magic was feared by common people and witches and wizards suffered much persecution. For a few years, the founders worked in harmony together, seeking out youngsters who showed signs of magic and bringing them up to the castle to be educated.
But then disagreements sprang up between them. A rift began to grow between Slytherin and the others. Slytherin wished to be more selective about the students admitted to Hogwarts. He believed that magical learning should be kept within all-magic families.
He disliked taking students of Muggle parentage, believing them to be untrustworthy. After a while, there was a serious argument on the subject between Slytherin and Gryffindor, and Slytherin left the school.
Reliable historical sources tell us this much, but these honest facts have been obscured by the fanciful legend of the Chamber of Secrets. The story goes that Slytherin had built a hidden chamber in the castle, of which the others knew nothing. Slytherin, according to the legend, sealed the Chamber of Secrets so that none would be able to open it until his own true heir arrived at the school.
The heir alone would be able to unleash the horror within and purge the school of all who were unworthy to study magic."

-The History of Hogwart, Professor Binns

Houses (Head of Houses)
-Gryffindor (Minerva McGonagall)
-Hufflepuff (Sprout)
-Ravenclaw (Flitwick)
-Slytherin (Snape)

Teachers (Class Taught)
-Professor McGonagall (Transfiguration)
-Professor Snape (Potions)
-Professor Binns (History)
-Professor Trewaleny (Divination)
-Firenze (Divination)
-Professor Sprout (Herbology)
-Professor Flitwick (Charms)
-Professor Dumbledore (Headmaster)
-Professor Quirrel (DADA, Year 1)
-Professor Lockhart (DADA, Year 2)
-Professor Lupin (DADA, Year 3)
-Professor Moody (DADA, Year 4)
-Professor Umbridge (DADA, Year 5 + Ex-Headmistress)
-Madam Hooch (Quidditch Teacher)
-Madam Pomfrey (Nurse)
-Madam Pince (Librarian)
-Professor Sinastra (Astronomy)
-Professor Vector (Arithmacy)
-Professor Marchbanks (OWLs Administrator)
-Professor Tofty (OWLs Administrator)
-Hagrid (Care of Magical Creatures)
-Professor Grubbly-Plank (Temporary Care of Magical Creatures)
-Argus Filch (Caretaker)

School Books
Cookery Books
- Enchantments in Baking
- Charm Your Own Cheese
- One Minute Meals - It`s Magic!

Lockhart`s Books
- Break With a Banshee
- Gadding With Ghouls
- Gilderoy Lockhart`s Guide to Household Pests
- Holidays With Hags
- Magical Me
- Travels With Trolls
- Voyages With Vampires
- Wanderings With Werewolves
- Year of the Yeti

School Books
- A Beginners` Guide to Transfiguration by: Emeric Switch
- The Dark Forces: A Guide to Self-Protection by: Quentin Trimble
- Fantastic Beasts and Where to Find Them by: Newt Scamander
- A History of Magic by: Bathilda Bagshot
- Intermediate Transfiguration
- An Encyclopedia of Toadstools
- Magical Drafts and Potions by: Arsenius Jigger
- Magical Theory by Adalbert Waffling
- The Monster Book of Monsters
- One Thousand Magical Herbs and Fungi by: Phyllida Spore
- The Standard Book of Spells Grade 1 by: Miranda Goshawk
- The Standard Book of Spells, Grade 2 by: Miranda Goshawk
- The Standard Book of Spells, Grade 3 by: Miranda Goshawk
- The Standard Book of Spells, Grade 4 by: Miranda Goshawk
- The Standard Book of Spells, Grade 5 by: Miranda Goshawk

Quidditch Books
- Handbook of Do-It-Yourself Broomcare
- Quidditch Through the Ages
- Flying with the Cannons
- Quidditch Teams of Britain and Ireland
- Which Broomstick

Fortune-Telling Books
- Predicting the Unpredictable: Insulate Yourself Against Shocks
- Broken Balls: When Fortunes Turn Foul
- Death Omens: What to Do When You Know the Worst is Coming
- Unfogging the Future by: Cassandra Vablatsky
-The Dream Oracle

Dragon Books
- Dragon Species of Great Britain and Ireland
- From Egg to Inferno, A Dragon Keeper`s Guide
- Dragon-Breeding for Pleasure and Profit
- Men who Love Dragons too Much

Defense Against the Dark Arts Books
-A Compendium of Common curses and Their Counter-Actions
-The Dark Arts Outsmarted
-Self-Defensive Spellwork
-Jinxes for the Jinxed
-Defensive Magical Therory

Miscellaneous Books
- Curses and Countercurses by: Professor Vindictus Viridian
- Notable Wizarding Events of the 20th Century
- Hogwarts: A History
- Invisible Book of Invisibility
- Modern Magical History
- Prefects Who Gained Power
- The Rise and Fall of the Dark Arts
- An Appraisal of Magical Education in Europe
- Common Magical Ailments and Afflictions
- Magical Water Plants of the Mediterranean
- A Study of Recent Developments in Wizardry
- Great Wizards of the Twentieth Century
- Notable Magical Names of Our Time
- Moste Potent Potions
- Important Modern Magical Discoveries
- The Handbook of Hippogriff Psychology
- Fowl or Foul? A Study of Hippogriff Brutality
- Old and Forgotten Bewitchments and Charms
- Saucy Tricks for Tricky Sorts
- Weird Wizarding Dilemnas and Their Solutions
- Madcap Magic for Wacky Warlocks
- A Guide to Medieval Sorcery
- An Anthology of Eighteenth-Century Charms
- Dreadful Denizens of the Deeps
- Powers You Never Knew You Had and What to Do With Them Now You`ve Wised Up
- Where There`s a Wand, There`s a Way