BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20251112T152819
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
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BEGIN:VEVENT
UID:6a789c93c8548
DTSTAMP:20260809T152819Z
SUMMARY:Leonardo da Vinci – Erfindungen erleben
DTSTART:20270113T100000Z
DTEND:20270113T100000Z
END:VEVENT
END:VCALENDAR