Dates in RaM

1840: Albus’s birth, 1 August*
1843: Crispinian Egidius and Gwynllian Parnovon, Egeria’s parents, born
1844: Collum McGonagall, Merwyn’s father, born
1845: Siofra Tyree, Merwyn’s mother, born
1858: Albus takes NEWTs, marries Dervilia
1859: Dervilia becomes pregnant
1860: Dervilia dies
1869: Merwyn McGonagall born
1875: Egeria Egidius born
1907: Merwyn & Egeria marry; Malcolm McGonagall born
1910: Morgan McGonagall born
1913: Murdoch McGonagall born
1924: Minerva’s birth, 4 October
1925: Malcolm leaves Hogwarts after NEWTs
1929: Morgan leaves Hogwarts after NEWTs
1931: Murdoch leaves Hogwarts after NEWTs
1936: Minerva starts at Hogwarts; Melina McGonagall born
1937: Albus begins teaching at Hogwarts
1938: Poppy enters Hogwarts
1939: Hagrid enters Hogwarts
1940: Churchill becomes PM, 10 May; London Blitz begins, 7 September; chapters “Spero et Expecto” and “Chez Albus” of RaM
1942: Chamber of Secrets opened; Hagrid expelled
1945: Minerva rescues Albus, 5 January; Albus defeats Grindelwald, March
1948: Minerva’s apprenticeships
1949: Minerva joins Ministry’s Special Committee on Experimental Transfiguration, November
1955: Albus becomes Headmaster with death of Armando Dippent
1956: Minerva becomes Hogwarts Transfiguration teacher, December
1957: Minerva complains to Poppy about Albus’s treatment of her, 4 July

Key dates in July 1957 (Major Spoilers!):

4: Minerva complains about Albus to Poppy; Albus arranges to have Minerva join him for dinner and apologises to her.
5: Minerva and Albus have breakfast together; Minerva receives Gertie’s invitation to the Gamps.
8: Minerva arrives at the Gamps; she learns that Gertie had been married & that Albus had been seeing Valerianna Yaxley a few years ago; she makes the acquaintance of Gertie’s nephew-by-marriage, Cormac Quinlivan MacAirt, and Valerianna Yaxley, who is also a guest of the Gamps.
9: Minerva meets Robert Crouch, Gertrude’s son; Quin performs a divination for Minerva.
10: Minerva and Quin attend the engagement party together.
11: Minerva returns to Hogwarts, then visits Poppy and learns about the conspiracy of witches, led my Gertrude, a few years before; Minerva leaves for her parents’ home.
12: Albus visits the McGonagalls.
13: Albus receives an owl from St. Mungo’s telling him that Pretnick was bitten by a werewolf.
15: Minerva goes on a date with Filius Flitwick, set up by Albus, but neither party is aware that it is supposed to be a date.
20: Albus and Minerva go on a picnic breakfast, then Albus helps Melina with her Muggle boyfriend, Brennan; that evening, Albus and Minerva go to dinner and a concert.
21: Minerva learns that her wand and Albus’s are “mated.”
22: Minerva has a bad day, then inadvertently is hurtful to Gertie. She later has drinks with Gertie, Johannes, and Hafrena MacAirt.
23: Philomena Yaxley meets “Morag the Cat,” then Minerva and other members of the staff visit Jeremiah the Jarvey; Minerva has dinner with Quin at the Three Broomsticks, and ends her day with a chess game with Albus.
24: Minerva leaves for her family home; before she leaves, she sees a shaved and shorn Albus; at her reaction, Albus removes the strong Glamour and returns to his normal bearded long-haired self.

Don’t forget there’s also the outline for RaM available on my blog here.

*JKR recently posted Albus Dumbledore’s birth year as 1881. Prior to this, everyone, including the HP-Lexicon, assumed a birth year of approximately 1840, based on an interview that JKR gave several years ago in which she stated that Albus was one hundred fifty years old. I used the 1840 date as my “jumping off point” for RaM — and AAoL, by extension, since AAoL is set in the same fictional universe as RaM — and obviously, over 400,000 words into the story, I can’t change something like that without entirely rewriting RaM, and a lot of RaM would make no sense if I were to change it. So essentially, assume that RaM and AAoL attempt to be canon-compliant through everything we knew about the HP-universe up until 21 July 2007. I have changed a few minor details in my RaM outline, but very little — one of the things I changed was Grindelwald’s first name, which I had made “Gunther”; now, it is “Gellert,” as it is in canon. The only other change I can think of that I have made as a result of DH is Albus’s mother’s name. I had been torn as to whether to make Albus’s mother a Muggle-born or a Muggle — I had Quin call her a “Muggle-born” way back in the chapter “More Relatives,” and part of my future outline is dependent on her being a Muggle-born witch — but I began to worry that JKR was going to make her a Muggle and so I left myself a little wiggle-room there. I don’t know why I thought that. However, my Albus is still born in 1840, and he has no sister. And there are a great many other differences, as you will see. By the way, what Quin said back at the Gamps was,“As far as I know, Dumbledore is not closely related to either the Crouches or the Gamps, although it’s possible, I suppose. I think Dumbledore’s mother was a Muggle-born, though – leastwise, that’s what I remember – so if he is related to them, it’d have to be through his father, and I’ve never heard the Crouches braggin’ that they’re related to the Dumbledores, sure an’ they would be if ’twere true.”