Gradus (unit)

Gradus (bahasa Latin: pl. gradūs) (atau "Step" ("Langkah") dalam bahasa Inggris) adalah unit ukuran panjang pada zaman Romawi Kuno yang setara dengan 2½ pedes atau ½ Roman pace (passus). Mengikuti standardisasi pada zaman Agrippa, 1 Gradus = sekitar 0,81 yard atau 0,74 meter.

Langkah Bizantium (bahasa Yunani: βήμα, bḗma) adalah adaptasi dari langkah Romawi, yaitu = 2½ kaki Yunani.^[3]

Serupa dengan unit ukuran 1 langkah di Amerika = 2½ feet atau 30 inci.

Referensi

^ Schilbach, Erich, Byzantinische Metrologie . (Jerman)
^ Ménage, V.L. (1973), "Reviews: Speros Vryonis, Jr.: The decline of medieval Hellenism in Asia Minor and the process of islamization from the eleventh through the fifteenth century.", Bulletin of the School of Oriental and African Studies, Vol. 36, No. 3, University of London, hlm. 659–661, JSTOR 613605 .
^ Schilbach,^[1] cited by Ménage.^[2]

[1] Schilbach, Erich, Byzantinische Metrologie . (Jerman)

[2] Ménage, V.L. (1973), "Reviews: Speros Vryonis, Jr.: The decline of medieval Hellenism in Asia Minor and the process of islamization from the eleventh through the fifteenth century.", Bulletin of the School of Oriental and African Studies, Vol. 36, No. 3, University of London, hlm. 659–661, JSTOR 613605 .

[3] Schilbach,^[1] cited by Ménage.^[2]

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