BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20250923T180138
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
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BEGIN:VEVENT
UID:6a36d5821e494
DTSTAMP:20260620T180138Z
SUMMARY:Leonardo da Vinci – Erfindungen erleben
DTSTART:20261021T090000Z
DTEND:20261021T090000Z
END:VEVENT
END:VCALENDAR