UNESCO World Congress Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: June 20, 2012 – June 23, 2012 all-day 2012-06-20T07:00:00+00:00 2012-06-23T07:00:00+00:00 *Partner event* Conference David Porter will present the North America practitioner report on OER trends at UNESCO World Congress, held in Paris, France at UNESCO headquarters.