The 1990s
1996 (Y16) AD = 115 MM = 71 TR = 70 RH = 68 M = 38 BW = 26 CW = 24 PW = 20 FGW = 18 HG = 17 H&R = 16 GW = 15
Valentine's Day[Harry]'s first date with [Cho Chang] (the complete fiasco), followed by [Rita]'s interview of [Harry] for [The Quibbler].
(OP25)
The [D.A.] is caught[Marietta Edgecombe] squeals on the [D.A.] to [Umbridge]. Rather than let [Harry] get expelled,[Dumbledore] takes the fall instead and is removed from [Hogwarts]. Unwilling to "go quietly," he instead makes a dramatic escape.
"As the door swung closed behind them, Harry heard [Phineas Nigellus]'s voice.
'You know, Minister, I disagree with [Dumbledore] on many counts...but you cannot deny he's got style....'"
(OP27)
[Harry] takes his [O.W.L.s], but they are interrupted by a vision of [Sirius] being tortured ([OP31])After a delay trying to contact [Grimmauld Place] and being caught by [Umbridge] ([OP32]), [Harry] takes off for the [Ministry of Magic Headquarters] to find [Sirius]. [Ron], [Hermione], [Ginny], [Neville], and [Luna] come along ([OP33]). [Snape], meanwhile, sends word to the [Order of the Phoenix] that the kids have gone ([OP37]).
The Battle of the [Department of Mysteries]A pitched battle is fought between members of the [D.A.], a group of [Death Eaters], and members of the [Order of the Phoenix]. [Sirius Black] is killed and many others are wounded ([OP35]). When [Voldemort] himself arrives and battles [Dumbledore] in the Atrium, [Fudge] is forced to admit that [Voldemort] has indeed returned and remove [Umbridge] from [Hogwarts] ([OP36]). [Dumbledore] returns to [Hogwarts] and reveals to [Harry] the contents of [Trelawney]'s first [prophecy] ([OP37]).
[Gryffindor] wins the [Quidditch Cup]No mention of who wins the [House Cup], but it probably wasn't [Gryffindor].
(OP30)
With [Voldemort] out in the open, the second war beginsIt's a busy two weeks:
- When [Minister for Magic] [Cornelius Fudge] refuses to step aside for [Voldemort], the [Brockdale Bridge] is destroyed, killing dozens of Muggles.
- [Amelia Bones], Head of [Magical Law Enforcement], and [Emmeline Vance], a member of the [Order of the Phoenix], are murdered - the former by [Voldemort] himself.
- Destruction in [Somerset] is reported; Muggles suspect a hurricane, but it was probably the work of [giants] working for [Voldemort].
- [Dementors] are breeding, causing cool weather and persistent mist across [Britain].
- [Cornelius Fudge] is sacked and [Rufus Scrimgeour], Head of the [Aurors], takes his place.
- A Junior Minister in the Muggle government, [Herbert Chorley], has a bad reaction to an [Imperius Curse] and thinks he's a duck. He is spirited away to St Mungo's] and [Kingsley Shacklebolt] takes a position as a secretary to the Muggle [Prime Minister] to guard him.
- [Fudge] visits the Muggle [Prime Minister] and introduces the him to [Scrimgeour].
- [Voldemort] is furious with the failure of his [Death Eaters] to retrieve the [prophecy]. He assigns [Draco Malfoy] the task of killing [Dumbledore], at least in part to punish [Lucius]'s failure, since [Draco] will almost certainly be killed.
- [Narcissa Malfoy], followed by her sister [Bellatrix], visits [Severus Snape] in his house on [Spinner's End] and get him to take the [Unbreakable Vow] that he will protect and Draco and, if necessary, kill [Dumbledore] for him.
- [Harry] spends two weeks at [number four, Privet Drive].
[Dumbledore] visits [Privet Drive] and takes [Harry] to the [Burrow]On the way, they stop by [Budleigh Babberton] and convince [Horace Slughorn] to return to [Hogwarts] and teach [Potions].
(HBP3)
[Harry]'s 16th birthday[Harry] celebrates at the [Burrow], but the celebrations are marred by reports of [Dementor] attacks and disappearances brought home by [Arthur], [Bill], and [Lupin].
(HBP6)
[Harry], [Hermione] and the [Weasleys] visit a much-changed [Diagon Alley]There they have a run-in with [Draco] and [Narcissa Malfoy] in [Madam Malkin's], visit [Weasleys' Wizard Wheezes], and follow Draco to [Borgin and Burkes], where they overhear him threatening [Mr. Borgin].
This happened the Saturday following Harry's birthday. According to the calendar used by the rest of the book, this day would be August 3.
(HBP6)
On [Harry]'s first day of class, he receives the [Half-Blood Prince]'s old [Potions] book[Snape] tries to jinx [Harry] in [Defence Against the Dark Arts], but he excells in [Potions] and wins a bottle of [Felix Felicis].
The date for the first day of school is never given in this book, but we know from previous books that the [Hogwarts Express] has every year left for start of term on September 1, so this is probably a safe assumption.
(HBP9)
[Harry] has his first one-on-one lesson with [Dumbledore]They view [Bob Ogden]'s memory of the [Gaunt house], and discuss the circumstances surrounding [Voldemort]'s birth.
Again the exact date is uncertain, but we know that this lesson is the Saturday immediately following the first day of classes ([HBP9]), so it is most likely September 7.
(HBP10)
[Harry]'s second lesson with [Dumbledore]Together they view [Dumbledore]'s memory of going to meet young [Tom Riddle] at his [orphanage] ([HBP13]).
We know from [HBP12] that this lesson falls roughly "halfway through October."
The [Gryffindor Quidditch team] wins its first matchThe team wins largely thanks to [Harry], who pretended to give [Ron] [Felix Felicis] before the game to bolster his confidence.
After the game, [Ron] and [Lavender] get together, much to [Hermione]'s dismay.
There is no mention of what day this happened, but it was probably somewhere around early November.
(HBP14)

[Slughorn]'s Christmas party[Harry] attends with [Luna Lovegood]; [Hermione] brings [Cormac McLaggen] to annoy [Ron].
During the party, [Harry] follows [Snape] and [Malfoy] and overhears them talking about the [Unbreakable Vow].
(HBP17)
[Rufus Scrimgeour] visits the [Burrow] on Christmas DayHe shows up under the pretense of [Percy] wanting to see his family. It soon becomes apparent, however, that what he actually wants is to ask [Harry] to support the [Ministry]. [Harry] refuses to help him and walks away.
(HBP16)
1997 (Y17) AD = 116 MM = 72 TR = 71 RH = 69 M = 39 BW = 27 CW = 25 PW = 21 FGW = 19 HG = 18 H&R = 17 GW = 16
[Harry]'s third lesson with [Dumbledore][Harry] and [Dumbledore] together watch the memory of [Tom Riddle] returning to the [Gaunt house] and a fuzzy memory of [Riddle] asking [Professor Slughorn] about [Horcruxes].
This happened the first day back from the Christmas holidays, and a "few days after New Year." On the [HBP] calendar, this is Monday, January 6.
(HBP17)
[Ron]'s seventeenth birthdayShortly after waking up, [Ron] accidentally has some of [Romilda Vane]'s [love potion] - and after [Slughorn] provides him with an antidote, he inadvertently poisons [Ron] as well. Fortunately, [Harry] reacts quickly and gives [Ron] a [bezoar], saving his life.
(HBP18)
[Harry]'s fourth lesson with [Dumbledore][Harry] arrives at his lesson with [Dumbledore] having forgotten to do his homework and get the full memory from [Slughorn]. They watch several memories, including [Voldemort]'s applying to teach [Defence Against the Dark Arts], and [Dumbledore] warns [Harry] that further lessons will be useless without the memory from [Slughorn].
(HBP20)
[Horace Slughorn] finally gives up his memory to [Harry] - thanks to [Felix Felicis] ([HBP22])He races to [Dumbledore]'s study at midnight and together they watch the full memory, discussing [Voldemort], [Horcruxes], and the [prophecy] - along with how [Harry] is going to react to all three ([HBP23]).
We know this happens on April 21 because [Apparition] tests were the same day, and the sign posted in the [Gryffindor common room] in [HBP21] specified the date. This works well with our calendar, too; the 21st is a Monday, we already know from [HBP9] that [Harry] has [Potions] on Mondays, and most of his lessons with [Dumbledore] have happened on Mondays as well.
[Harry] uses the [Sectumsempra] curse on [Malfoy][Snape] quickly arrives to heal [Malfoy], but [Harry] lands in [detention] every Saturday for the rest of the year.
(HBP24)
[Harry] serves his first [detention] with [Snape]; meanwhile, [Gryffindor] wins the [Quidditch Cup][Harry] returns to [Gryffindor Tower] after his [detention] to find a massive celebration - and immediately kisses [Ginny] in front of everybody.
(JKR)
[Harry] and [Dumbledore] retrieve the fake [Horcrux] from inside [Voldemort]'s sea [cave]We are given no indication of the date, except that it's June.
(HBP26)
The Battle of The TowerWhile [Dumbledore] is away, a gang of [Death Eaters], led by [Draco Malfoy], sneaks into [Hogwarts] through the [vanishing cabinet] in the [Room of Requirement]. They battle the [Order of the Phoenix], and when [Dumbledore] and [Harry] return, Dumbledore freezes Harry and [Draco] arrives to [Disarm] [Dumbledore] ([HBP27]).
After a standoff, [Snape] arrives and kills [Dumbledore], and the [Death Eaters] flee the school. [Harry] then discovers that the [locket] is not the real [Horcrux], but rather that it was replaced by a fake one from [R.A.B.] ([HBP28]).
[McGonagall], now acting as headmaster, meets with the [Order] and with the [heads of houses], determining that students will be allowed to stay for [Dumbledore]\'s funeral ([HBP29]).
[Dumbledore]'s funeralMuch of the British Wizarding World comes to [Hogwarts] to bid farewell to the "greatest headmaster [Hogwarts] ever had."
After rejecting [Scrimgeour] again and breaking ties with [Ginny], [Harry] walks off with [Ron] and [Hermione]. He pledges to find the [Horcruxes] himself, and they pledge to stand with him the whole time.
(HBP30)
[Harry Potter and the Philosopher's Stone] is publishedIt is published only in [Britain] until the following year.
Battle of the Seven Potters
The [Order of the Phoenix] attempts to release Harry from [Privet Drive] only to be ambushed by [Death Eaters]. An aerial battle ensues which ranges over the southern counties of England between [Little Whinging] and the [Burrow].
The Wedding
[Fleur Delacour] and [Bill Weasley] get married. The reception is broken up by a [Death Eater] attack.
Story of the Locket Revealed
New Hogwarts Headmaster
With Death Eaters in control of the Ministry, Severus Snape becomes headmaster of Hogwarts.
The Infiltration of the Ministry
Harry, Ron, and Hermione use Polyjuice Potion to impersonate Ministry Employees. They recover a Horcrux and make a narrow escape.
