blue-green
Iraq
13th Century
Source: Sezgin, F. (2003). Science and Technology in Islam: Introduction. Institut für Geschichte der Arabisch-Islamischen Wissenschaften.
Recipe Details
Preparation Steps
A blue-green colorant was used to represent the 'seven waters' (oceans/seas) on a terrestrial globe (p. 42).
Original Recipe Text
A blue-green colorant was used to represent the 'seven waters' (oceans/seas) on a terrestrial globe (p. 42).
Evidence
"the ‘seven waters’ on it drawn in blue-green"
Remarks
The color was applied to a globe that also featured a network of meridians and parallels (graticule), allowing for the calculation of regions and distances (p. 42).
Scientific Analysis
Analytical Techniques
historical record description
Certainty Level
Inferred
Instrumentally Verified
Not Verified
Metadata
Material Type
pigment
ColorGreen
RegionIraq
Approx. Year1250
Source Information
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