Author: Bryce al'Mara
A similar entry appears in the Wheel of Time Companion confirming the information available in the main story arc.
Unless stated otherwise, all information herein is taken from Towers of Midnight, Chapter 15.
Yasicca Cellaech was an ancient Brown scholar. Egwene uses one of her quotes which is "So long as we do not depend on the facts entirely, incomplete knowledge is better than complete ignorance."(ToM, Ch. 15)