The 1980s
1981 (Y1) AD = 100 MM = 56 TR = 55 RH = 53 M = 23 BW = 11 CW = 9 PW = 5 FGW = 3 HG = 2 H&R = 1 GW = 0
In October of 1995 [[Y15]], Snape told [Umbridge] that he had been teaching at Hogwarts for 14 years, but unlike McGonagall, he did not specify the month (OP17). He later says that he took up the post on Voldemort's orders (HBP2), so it's almost certain he began teaching at the start of the school year.
Fudge says that the [Fidelius Charm] was cast "barely a week" before Voldemort came after the Potters.
(PA10)
Voldemort, nearly dead and without physical form, retreats into the forests of Albania where he possess the bodies of various animals to survive for the next decade, waiting. Hagrid, on [Dumbledore]'s orders, goes to [Godric's Hollow] to rescue baby Harry from the ruins of the house.
(PS1)
It's about 90% certain this happened on November 1, but it's also possible it was November 2.
(PA10)
but there are [twenty-four hours missing] from the chronology of events of these two days...
(PS1)
This almost certainly happened immediately following Sirius's capture on November 1, but we have no way of knowing for sure.
(GF27)
We know that this happened shortly after Voldemort's downfall, as [Dumbledore] says it was "just when everyone thought they were safe." They likely happened sometime between November 1981 [[Y1]] and very early 1982 [[Y2]].
(GF30)
after 1981 (Y1)
(PA18)
c. 1982 (Y2)
(GF30)
1982 (Y2) AD = 101 MM = 57 TR = 56 RH = 54 M = 24 BW = 12 CW = 10 PW = 6 FGW = 4 HG = 3 H&R = 2 GW = 1
We know from Sirius Black in GF27 that the escape was "about a year" after [Crouch Jr.] had been sent to [Azkaban], so it was probably sometime around November or December of 1982 [[Y2]].
c. 1983 (Y3)
"If you must know, when I was three, Fred turned my - my teddy bear into a great big filthy spider because I broke his toy broomstick.... You wouldn't like them either if you'd been holding your bear and suddenly it had too many legs and..."
This is a pretty complex bit of Transfiguration for a five-year-old, considering eleven-year-olds struggle to turn matches into needles. Maybe Ron just dreamed the whole thing.
(CS9)
1983 (Y3) AD = 102 MM = 58 TR = 57 RH = 55 M = 25 BW = 13 CW = 11 PW = 7 FGW = 5 HG = 4 H&R = 3 GW = 2
1984 (Y4) AD = 103 MM = 59 TR = 58 RH = 56 M = 26 BW = 14 CW = 12 PW = 8 FGW = 6 HG = 5 H&R = 4 GW = 3
"The idea of overtaking Slytherin in the house championship was wonderful, no one had done it for seven years..." (PS13)
This statement refers to school years, not actual years. The 1983-84 [[Y3]-[Y4]] school year is seven school years before that statement was made in the fall of 1991 [[Y11]] (and yes, from the context we can be almost 100% sure that it's talking about the [Quidditch Cup], not the [House Cup]). Charlie HAD to have been on the team this year, since "Gryffindor hadn't won the [Quidditch Cup] since the legendary Charlie Weasley...had been seeker." However, according to [Rowling]'s age statement for Charlie, he wasn't, as he was only a first year at the time. This is an error in the text.
(PS13)
c. 1985 (Y5)
"No one's lived here for ten years, not since my dear mother died, unless you count her old house-elf, and he's gone round the twist -- hasn't cleaned anything in ages." -- Sirius Black (OP5)
1985 (Y5) AD = 104 MM = 60 TR = 59 RH = 57 M = 27 BW = 15 CW = 13 PW = 9 FGW = 7 HG = 6 H&R = 5 GW = 4
[Aunt Marge] comes to [Dudley]'s fifth birthday partyShe whacks Harry around the shins to keep him from beating [Dudley] at musical statues.
(PA2)
(JKR)
1986 (Y6) AD = 105 MM = 61 TR = 60 RH = 58 M = 28 BW = 16 CW = 14 PW = 10 FGW = 8 HG = 7 H&R = 6 GW = 5
(QA8)
1987 (Y7) AD = 106 MM = 62 TR = 61 RH = 59 M = 29 BW = 17 CW = 15 PW = 11 FGW = 9 HG = 8 H&R = 7 GW = 6
(fw)
(FB)
(JKR)
c. 1988 (Y8)
This happened when Neville was eight, so it could just have easily been in 1989 [[Y9]].
(PS7)
1988 (Y8) AD = 107 MM = 63 TR = 62 RH = 60 M = 30 BW = 18 CW = 16 PW = 12 FGW = 10 HG = 9 H&R = 8 GW = 7
[Aunt Marge] comes to [Dudley]'s eighth birthday partyShe brings a computerized robot for [Dudley] and a box of dog biscuits for Harry.
(PA2)
(OP9)
1989 (Y9) AD = 108 MM = 64 TR = 63 RH = 61 M = 31 BW = 19 CW = 17 PW = 13 FGW = 11 HG = 10 H&R = 9 GW = 8
While these are conjectures, it seems logical that both of these players would have been on the team. Charlie may have been Quidditch Captain at this point.
See entry below (1990 [[Y10]]) for an explanation of when Quirrell taught.
The 1990s
Events of this decade:
The events of the 1990s comprise the stories of the Harry Potter novels themselves. The years in which these stories take place are not stated specifically in the books but can be deduced from clues. The official timeline of the stories, as found on the Chamber of Secrets DVD second disk, uses the dates of the 1990s for these events, and it is from the "real" calendars of those years that I have derived many of the dates and days of the week indicated here. Some days and dates are specified in the books, others are approximated or deduced. However, the days and dates given in the books do not match any existing "real" calendar -- in fact, some dates are simply impossible, such as books where two Mondays happen in a row.
1990 (Y10) AD = 109 MM = 65 TR = 64 RH = 62 M = 32 BW = 20 CW = 18 PW = 14 FGW = 12 HG = 11 H&R = 10 GW = 9
(BFT)
[Aunt Marge] comes to [Dudley]'s tenth birthday partyShe brings Ripper, her favorite bulldog. Harry accidentally steps on Ripper's tail and the dog "trees" him. [Marge] finally calls the dog off around midnight. When [Marge] comes to visit during the summer of Y13, Harry remembers past incidents:
"On her last visit, the year before Harry started at Hogwarts, Harry had accidentally trodden on the tail of her favorite dog. Ripper had chased Harry out into the garden and up a tree, and [Aunt Marge] had refused to call him off until past midnight. The memory of this incident still brought tears of laughter to [Dudley]'s eyes" (PA2).
Harry also recalls this event in his Occlumency lessons.
"He was nine, and Ripper the bulldog was chasing him up a tree and the [Dursleys] were laughing below on the lawn..." (OP24).
He was nine because his own tenth birthday was still a month away.
There is no specific canon reference to indicate which year Quirrell took off from teaching. However, [Dumbledore] specifically says in HBP20, "we have never been able to keep a Defence Against the Dark Arts teacher for longer than a year since I refused the post to Lord Voldemort." Therefore, since we know Quirrell taught in 1991-1992 [[Y11]-[Y12]], he could not have taught from 1990-1991 [[Y10]-[Y11]]. This, then, was almost certainly his year off.
However, Hagrid speaks of Quirrell's nervousness as the result of his year off, and if that year off had been the 1990-1991 [[Y10]-[Y11]] school year (the one immediately before Harry comes to Hogwarts), Hagrid seemingly wouldn't have known about Quirrell's altered behavior:
"Poor bloke. Brilliant mind. He was fine while he was studyin' outta books but then he took a year off ter get some firsthand experience...They say he met vampires in the Black Forest, and there was a nasty bit o' trouble with a hag--never been the same since. Scared of the students, scared of his own subject now..." (PS5)
This doesn't seem to align, but it is possible that Hagrid is just talking about the month or two since Quirrell has returned from Albania. And if we take [Dumbledore] at his word, nothing else really makes sense.
Charlie Weasley - seventh year, [Seeker], Captain
[Oliver Wood] - fourth year, [Keeper]
[Angelina Johnson] - second year, [Chaser]
[Alicia Spinnet] - second year, [Chaser]
unknown third Chaser - possibly seventh year since she isn't back in the 1991-1992 season
Fred Weasley - second year, [Beater]
George Weasley - second year, [Beater]
We don't know for sure which years Charlie was Captain of Quidditch, but it seems likely that we was Captain in his seventh year and possibly one or two years before that as well. We aren't told why this team was so poor, since they have a superb [Keeper] and a [Seeker] who could have played for England, but McGonagall says of them a year later:
"Heaven knows, we need a better team than last year. Flattened in that last match by Slytherin, I couldn't look Severus Snape in the face for weeks..." (PS9)
We are also not told why Fred and George would have been familiar with [Wood]'s pre-game speeches at the beginning of the 1991-1992 [[Y11]-[Y12]] season when he wasn't the Captain this year. While this isn't an error exactly, it does suggest that [Rowling] wrote these passages without realizing that the facts wouldn't fit together very well.
(PS9)
