At least 11 national Mensa groups have signed up to take part in the worldwide Intelligence Day through September.
The special day, the date of which varies from country to country, features lectures, test sessions and other events to promote Mensa. Sessions will be held in 80-100 cities or more.
For participating countries and more information, please seehttp://www.intelligenceday.com/en/intelligence-day/. More information will be added as it becomes available.