Model: an event has an organiser plus optional participants/supporters. An announcement (before) links to the call; after the event, evidence (a post) is added. More organisations on the same event = bigger marker (strength). 12 events from the real fablab.hr/tsp/kalendar list (2024) + announced events for 2026.
How to read the time bar: drag the edges to narrow the period, drag the middle of the selected range to shift the whole period, double-click the bar to reset to all years.