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Sun & Rain Works

Est. 2005 · Eugene, OR

World Hydrography Day — MetaHistoryBook

World Hydrography Day

publicate the importance of hydrographer

Wikipedia ↗Images on Commons ↗Official site ↗Wikidata (Q8035842) ↗

Details

Instance of: world day
Main subject: hydrography
commemorates: hydrography
day in year for periodic occurrence: June 21

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