Franky

A simple plugin to sync Facebook events to the Events Made Easy plugin, based on the old Sync Facebook Events plugin. 
Uses the Facebook PHP API, which requires at least PHP 5.4 to work. 
Note: This plugin is NOT owned or maintained by Facebook in any way.
Get The Events Made Easy plugin: 
https://wordpress.org/extend/plugins/events-made-easy/

EME Sync Events

A simple plugin to sync Facebook events to the Events Made Easy plugin (not owned or maintained by Facebook in any way).

chherbst

This plugin synchronizes information of an Semantic Media Wiki 
with a wordpress blog.
It is supposed to be used in production without any downtime of the site. 
The way SMW data is imported can be configured using a simple php mapping array.
Until now it supports importing poss, categories, attachments, meta data, links and full galleries. Only data which has actually changed will be imported, thus minimizing the 
time on successive imports.
The supported import format is JSON. Thus it could also be used for data sources other than Semantic Media Wikis, as long as they export their data in JSON format.

SMW Import

Plugin to synchronize a wordpress blog with a JSON source, e.g. a Semantic Media Wiki.

EME Sync Events vs SMW Import