1991

The following events occurred in the year 1991:

Events

 * Charlie Weasley and Nymphadora Tonks graduate from Hogwarts School of Witchcraft and Wizardry.
 * June 23: For Dudley Dursley's eleventh birthday, his parents, cousin Harry Potter, and Piers Polkiss go to the zoo. Harry speaks Parseltongue for the first time to a boa constrictor.
 * July 31: Quirinus Quirrell breaks into Gringotts Wizarding Bank, but fails to steal the Philosopher's Stone. Harry, on his eleventh birthday, goes to Diagon Alley for the first time with Rubeus Hagrid.
 * September 1: Harry Potter and his classmates – including Ron Weasley, Hermione Granger, Neville Longbottom, and Draco Malfoy – begin at Hogwarts.
 * September 12: Harry Potter becomes the youngest Seeker in a century for the Gryffindor Quidditch team.
 * October 31: During the Halloween feast at Hogwarts, a mountain troll is let loose by Professor Quirrell, who looks for the Philosopher's Stone. Harry Potter and Ron Weasley save Hermione Granger from the troll, and the three become friends.
 * November: Harry plays his first Quidditch match.
 * December 25: Harry receives his late father's Invisibility Cloak from Albus Dumbledore as a Christmas present. He also finds the Mirror of Erised and sees his family for the first time.

Gryffindor

 * Lavender Brown
 * Seamus Finnigan
 * Hermione Granger
 * Neville Longbottom
 * Parvati Patil
 * Harry Potter
 * Dean Thomas
 * Ron Weasley

Hufflepuff

 * Hannah Abbott
 * Susan Bones
 * Justin Finch-Fletchley
 * Wayne Hopkins
 * Megan Jones
 * Ernie Macmillan
 * Zacharias Smith
 * Leanne

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 * Terry Boot
 * Mandy Brocklehurst
 * Michael Corner
 * Stephen Cornfoot
 * Kevin Entwhistle
 * Anthony Goldstein
 * Su Li
 * Morag MacDougal
 * Padma Patil
 * Lisa Turpin
 * [[Cho Chang|Cho Chang

Slytherin

 * Millicent Bulstrode
 * Vincent Crabbe
 * Tracey Davis
 * Gregory Goyle
 * Daphne Greengrass
 * Draco Malfoy
 * Theodore Nott
 * Pansy Parkinson
 * Blaise Zabini

Unknown

 * L. Moon
 * Sally-Anne Perks
 * Runcorn

Births

 * Two little witches: twin sisters to unnamed wizarding couple.

Deaths

 * Arcturus Black III
 * Magenta Comstock
 * Perpetua Fancourt
 * Tilly Toke

Muggle Events

 * 1991 at Wikipedia
 * February 17: Bonnie Wright, the actress who portrays Ginny Weasley in the Harry Potter films, is born.
 * August 16: Evanna Lynch, the actress who portrays Luna Lovegood in the Harry Potter films, is born.