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800 year old four-dial combination lock with over 4.2 billion possible combos made by an Iranian astrolabe maker named Muhammad ibn Hamid al- Asturlabi.
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this post was submitted on 06 Jan 2026
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Art
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You should look up the Golden age of Islam for a primer. Short version is tech and ideas moved between Rome and China over the Middle East via the silk road a lot of knowledge was consolidated in the Byzantine empire. and from there it morphed into the basis of a primitive but understanding of science though continual trade of ideas and goods to be preserved and expanded upon before being rediscovered by Europe much later.