1 files changed, 40 insertions, 6 deletions

diff --git a/notes.mdwn b/notes.mdwn
index 631b93e..127dce6 100644
--- a/notes.mdwn
+++ b/notes.mdwn
@@ -1,5 +1,29 @@
 [[!meta title="Notes on the Harry Potter universe"]]
 
+# Common References
+
+Day-to-day calendars:
+
+- [[Philosopher's Stone|http://www.hp-lexicon.org/timelines/calendars/calendar_ps.html]]
+- [[Chamber of Secrets|http://www.hp-lexicon.org/timelines/calendars/calendar_cs.html]]
+- [[Prisoner of Azkaban|http://www.hp-lexicon.org/timelines/calendars/calendar_pa.html]]
+- [[Goblet of Fire|http://www.hp-lexicon.org/timelines/calendars/calendar_gf.html]]
+- [[Order of the Phoenix|http://www.hp-lexicon.org/timelines/calendars/calendar_op.html]]
+- [[Half-Blood Prince|http://www.hp-lexicon.org/timelines/calendars/calendar_hbp.html]]
+- [[Deathly Hallows|http://www.hp-lexicon.org/timelines/calendars/calendar_dh.html]]
+
+Also, a [[generic calendar|http://www.hp-lexicon.org/timelines/timeline-year-calendar.html]]
+for a typical year at Hogwarts. And, a detailed analysis of [[the fateful Halloween|http://www.hp-lexicon.org/timelines/essays/timeline_potters.html]].
+
+Miscellaneous useful pages:
+
+- [[Hogwarts|http://www.hp-lexicon.org/hogwarts/w_pl_hogwarts.html]]
+- In particular, [[staff|http://www.hp-lexicon.org/hogwarts/hogwarts_teachers.html]]
+  and [[students|http://www.hp-lexicon.org/hogwarts/hogwarts_students.html]]
+- [[Complete Guide to Magic|http://www.hp-lexicon.org/magic/guide-to-magic.html]]
+  and [[Magical Theory|http://www.hp-lexicon.org/w_spells.html]]
+- [[Who's Who|http://www.hp-lexicon.org/wizards/wizards_list.html]]
+
 # Wizarding Economy
 
 This is a conversion table between the various forms of wizarding currencies,
@@ -64,18 +88,28 @@ is, after all, the "best" wizarding school) and consequently not visible in
 canon.
 
 So, a total "class size" for a year is about 200 witches and wizards. Let's call
-median life expectancy around 100 years, and we get a population number of
-20,000 for wizarding Britain. 3,600 of that is underage. Wizards seem to work
+median life expectancy around 150 years, and we get a population number of
+30,000 for wizarding Britain. 3,600 of that is underage. Wizards seem to work
 into their old age quite regularly, so let's call retirement age at about 10
-years, removing another 2,000. That leaves a workforce of some 14,400 persons.
+years, removing another 2,000. That leaves a workforce of some 24,400 persons.
 
 If the bureaucratic overhead of wizarding Britain is around 10% of the
-workforce, then the Ministry employs some 1,440 witches and wizards. If you want
+workforce, then the Ministry employs some 2,440 witches and wizards. If you want
 the Ministry to be more inept, you can plausibly stretch this as high as around
-3,600 before the society starts to fall apart.
+6,100 before the society starts to fall apart.
 
-I'm going to assume about 12.5% of wizarding Britain is pureblood, or 2,500
+I'm going to assume about 12.5% of wizarding Britain is pureblood, or 3,750
 witches and wizards. They have disproportionately high representation in the
 government. Essentially all purebloods attend Hogwarts, which is a contribution
 of some 20-25 students per year, more than half the Hogwarts class. Slytherin
 consumes maybe 8 of these leaving 4-6 for each of the other houses.
+
+As for that 150 year age estimate, I'm citing the [[Lexicon|http://www.hp-lexicon.org/wizworld/wizard-life.html]]
+which notes that Dumbledore dies before his time at age 150, McGonagall is a
+"sprightly 70", and Madam Marchbanks tested Dumbledore in his N.E.W.T.s and is
+still testing students when Harry is in school.
+
+# Miscellaneous
+
+For my own reference, this ikiwiki supports these directives:
+[[!listdirectives]]