Trivial Pursuit each one having its own color to readily identify itself; in the classic version of "Trivial Pursuit", these are Geography (blue), Entertainment (pink), History (yellow), Arts & Literature (originally brown, later purple), Science & Nature (green), and Sports & Leisure (orange). The game includes a board, playing pieces, question cards, a box, small plastic wedges to fit into the playing pieces, and a die. Playing pieces used in "Trivial Pursuit" are round and divided into six sections, similar to a cheese triangle. A small plastic wedge, sometimes called cheese, can be placed into each of these sections to mark each
Categories for the Working Mathematician Categories for the Working Mathematician Categories for the Working Mathematician (CWM) is a textbook in category theory written by American mathematician Saunders Mac Lane, who cofounded the subject together with Samuel Eilenberg. It was first published in 1971, and is based on his lectures on the subject given at the University of Chicago, the Australian National University, Bowdoin College, and Tulane University. It is widely regarded as the premier introduction to the subject. The book has twelve chapters, which are: Chapters XI and XII were added in the 1998 second edition, the first in view of its importance in string