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7 Jan 1000 Jahr - Reading Stone

Beschreibung:

The first vision aid, called a reading stone, is invented. It is a glass sphere placed on top of text, which it magnifies to aid readability.

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History of microscopes - Lily coulton

ByLily Coulton
5 Mai 2023
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114

Datum:

7 Jan 1000 Jahr
Jetzt
~ 1026 years ago
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