BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20260126T033835
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
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BEGIN:VEVENT
UID:6adad6bb56c39
DTSTAMP:20261023T033835Z
SUMMARY:Leonardo da Vinci – Erfindungen erleben
DTSTART:20261218T090000Z
DTEND:20261218T090000Z
END:VEVENT
END:VCALENDAR