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UID:cn-5277@celebrationnation.com
DTSTAMP:20261019T234947Z
DTSTART;VALUE=DATE:20260520
RRULE:FREQ=YEARLY;BYMONTH=5;BYMONTHDAY=20
SUMMARY:World Metrology Day
DESCRIPTION:Ideas\, posters and history: https://celebrationnation.com/celebrations/world-metrology-day/
URL:https://celebrationnation.com/celebrations/world-metrology-day/
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