Linux Presentation Day 2019.1
(source)
At the end of 2014 the Berlin Linux User Group (BeLUG) developed a concept for a joint Linux event which aims at interested people who do not know Linux yet and especially at the (non-IT) media. This event can be organized with very little effort i.e. by small groups (and very different organisations like LUGs and schools) without budget, too. The first event of this kind was in Berlin in May 2015 at eight locations (each run by another organization).
The second Linux Presentation Day (LPD 2015.2) was in November 2015 but this time not limited to Berlin but in 72 cities in Germany, Austria and Switzerland (more than 1,500 visitors). The LPD 2016.1 was in April 2016 in more than 110 cities in 10 countries.
We are now looking for people in further countries who organize an LPD event, gain experience with this kind of event, get familiar with the whole idea and (at best) organize a nationwide participation later. But currently most countries do not have a central organiser.