14 – “Fizz” - the editorial cartoonist in the Times is a reference to Hablot Knight Browne, 19th Century English artist, famous as Phiz, the illustrator of the best-known books by Charles Dickens. 19 – the “Ankh-Morpork Mission of the Uberwald League of Temperance and black ribbons: - A reference to the various temperance organizations in active in the 19th Century in Britain and other countries, such as the Woman's Christian Temperance Movement (which used a white ribbon.) These organizations required members to take a pledge of abstinence from all forms of alcohol.
I doubt either Colon or Vasquez found the jokes very amusing. The largest of these are usually held by Protestant organizations on the twelfth of July in commemoration of the Battle of the Boyne.
The Republican parades celebrating the Easter Rising can be large, but are not nearly so provocative, as they are not deliberately routed through Loyalist areas.
Tak's cave, and Dwarven beliefs about the dark in general, very nicely stand Plato's Allegory of the cave completely on its head.
A curious coincidence is that Tak, the name of the creator in dwarfish mythology, is also the name of an ancient evil spirit featured in two of Stephen King's novels, Desperation and The Regulators (written as Richard Bachman).
Read his surname as "Sew-Well" in the (non)-seamstress Sandra Battye sense, and it can be seen how he mutates into "Reynold Stitched").