Timeline of Voldemort's life (no spoilers past early chapters of book 7)

December 31: Tom Riddle born in muggle orphanage

Merope Gaunt Riddle dies

Morfin Gaunt returns from Azkaban

Tom Riddle terrorizes children in sea cave

Dumbledore meets Tom Riddle

Tom riddle starts at Hogwarts

Tom riddle learns of the existence of the Chamber of Secrets

Voldemort murders Tom Riddle Sr. and Riddle grandparents (Riddle Mansion, Little Hangleton)

Voldemort steals Marvolo Gaunt's ring, frames Morfin Gaunt for the Riddle murders

Voldemort creates first horcrux (ring)

Voldemort asks Slughorn about horcruxes

Voldemort opens Chamber of Secrets, killing Moaning Myrtle.

Hagrid expelled from Hogwarts

Voldemort graduates from Hogwarts

Armando Dippet denies Voldemort the Defense Against the Dark Arts job

Voldemort kills Hepzibah Smith, stealing Slytherin's locket and Hufflepuff's cup

Hokey the house elf framed for Hepzibah Smith's murder

Voldemort murders a muggle vagrant, creating the locket horcrux

Voldemort disappears

Voldemort rises to power

Snape tells Voldemort of the prophecy

Voldemort kills Lily and James Potter, attempts to kill Harry.

Quirrell encounters Voldemort (Albania). Voldemort possesses Quirrell.

Voldemort/Quirrell attempts to steal the Sorcerer's Stone from Gringott's

Harry defeats Quirrell

Ginny Weasley possessed by Voldemort via Tom Riddle's diary

Voldemort/Ginny reopens the Chamber of Secrets

Harry destroys the diary horcrux

Voldemort tortures and murders Ministry official Bertha Jorkins, creating Nagini horcrux.

Wormtail assist Voldemort in returning to a rudimentary body

Voldemort murders Frank Bryce, Riddle mansion caretaker

Voldemort returns to his full form, Little Hangleton graveyard

Death eaters escape from Azkaban

Battle of the Department of Mysteries. Voldemort fails to possess Harry.

Death Eaters kidnap Garrick Ollivander, wandmaker

Voldemort kills Amelia Bones, Head of Magical Law Enforcement, starting the Second Wizarding War

Cornelius Fudge fired. Former auror Rufus Scrimgeor becomes Minister for Magic.

Voldemort orders Draco Malfoy to kill Dumbledore

Snape makes the Unbreakable Vow to kill Dumbledore should Draco fail to do so

Voldemort and the Death Eaters take over Malfoy Manor

Harry and Dumbledore find the fake locket horcux in the sea cave

Voldemort kills Charity Burbage, Muggle Studies teacher

Battle of the Seven Potters. Alastor Moody killed.

The Ministry of Magic falls

Harry turns 17, losing the Trace

Merop Gaunt fools Tom Riddle Sr. into marrying her

Merope Gaunt-Riddle pregnant with Tom Riddle/Voldemort

Voldemort's Life