red ink
Maghrib
13th Century
Source: Sezgin, F. (2003). Science and Technology in Islam: Introduction. Institut für Geschichte der Arabisch-Islamischen Wissenschaften.
Recipe Details
Preparation Steps
The text describes the use of red ink specifically for distinguishing new coordinate data from existing values in the autograph of the 13th-century astronomer al-Marrākušī (p. 40).
Original Recipe Text
The text describes the use of red ink specifically for distinguishing new coordinate data from existing values in the autograph of the 13th-century astronomer al-Marrākušī (p. 40).
Evidence
"he marked his own coordinates with red ink in his autograph in order to distinguish them from older ones."
Remarks
The use of red ink for professional annotation and data correction within scientific autographs is a documented practice. Al-Marrākušī (b. around 1203, d. ca. 1282) used this red ink as a systematic notation tool in his geographic tables, which contained approximately 130 corrected localities (p. 39-40).
Scientific Analysis
Analytical Techniques
visual identification
Certainty Level
Inferred
Instrumentally Verified
Not Verified
Metadata
Material Type
ink
ColorRed
RegionMaghrib
Approx. Year1250
Source Information
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