####User stories:
As a member of a WikiProject, I want to be able to add a calendar of events that are related to the topical area of the WikiProject, so that people can find more ways to contribute to articles in the topic of the project.
As an editor of a wiki, I want to add a calendar of events/list of WikiProjects to the homepage of the wiki, so that people can find more opportunities to connect and collaborate on the wikis.
As an organizer of an event, I want my event to be promoted in many places across the wiki(s), so that more people can learn about and join my event.
####Background:
Users can find the Collaboration List via Special:AllEvents. But some users may want to have a version of the Collaboration List on another wiki page, so that they can encourage people to easily discover events or WikiProjects that interest them. For this reason, we want to allow any wiki page to add a customized, miniature version of the Collaboration List.
Decisions that have been reached, as discussed in T387794:
* The default will be the raw transcluded event lists.
* Users will set up the formatting themselves using wikitext.
* We will provide documentation on formatting using wikitext.
* There will be an 'Explore more events' link at the end of the event list linking to the full collaboration list, and when users visit the main collaboration list, the filters in the transcluded list will also be applied