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Helwan Observatory opening

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Name: Helwan Observatory opening
Type: start
Observatory: Helwan Observatory
Date: 1903


Issues:
75th Anniversary of Helwan Observatory Egypt 1978

Not in any designs.

No synonyms.

Record of changes
Prev start: Helsinki Zoo founding
Next start: Helwan University founding

Prev event: Helsinki Pact Civic Gathering
Next event: HEMISFAIR 1968




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