Got a timeline MSWord document from LD to incorporate as page on site. Added a timeline page to the Contexts section (at end of list) and populated it with the content from the MSWord file.
Modified the generateNav.xsl file to add the new navigation item. Had to add a nextSection element with contextTimeline as value to the contextCharacters file. The contextTimeline has no nextSection element, as it's the last page in the section.

If the braintrust decides to have a copy of this file in each of a number of other sections of the site, I'll have to create 3 or 4 new pages and make similar modifications to the generateNav.xsl and XXXXXCharacters_en.xml file.