Does the jQuery eventcalendar plugin come already installed on Semantic Mediawiki/Mediawiki or do we have to install it separately?
From semantic-mediawiki.org
Fragment of a discussion from Help talk:Eventcalendar format
I just amended the sentence a bit. No, the jQuery eventcalendar plugin is shipped bundled with the software. What you need to install though is the Extension "Semantic Result Formats" extension, since this result format is not part of Semantic MediaWiki core.