841 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "841" in English language version.

Last modified: 19:44:12, 22 June 2026 (UTC)

Ref.Un. Ref.Website

Global rank English rank

6^th place

6^th place

11britannica.com

37^th place

64^th place

11researchgate.net

96^th place

89^th place

2^nd place

2^nd place

archive.org (Global: 6^th place; English: 6^th place)

Treadgold 1988, pp. 324–325. Treadgold, Warren (1988). The Byzantine Revival, 780–842. Stanford, California: Stanford University Press. ISBN 978-0-8047-1462-4.

britannica.com (Global: 37^th place; English: 64^th place)

"Al-Muʿtaṣim | ʿAbbāsid caliph". Encyclopedia Britannica. Retrieved May 18, 2021.

doi.org (Global: 2^nd place; English: 2^nd place)

Sicoli, Piero; Cesario, Marilina; Gorelli, Roberto (2022). "Comets and Political Anxieties in the First Half of the Ninth Century: New Light on Comets X/839 B1 and X/841 Y1". Journal of Astronomical History and Heritage. 25 (2): 213–226. doi:10.3724/SP.J.1440-2807.2022.02.04.

researchgate.net (Global: 96^th place; English: 89^th place)

Sicoli, Piero; Cesario, Marilina; Gorelli, Roberto (2022). "Comets and Political Anxieties in the First Half of the Ninth Century: New Light on Comets X/839 B1 and X/841 Y1". Journal of Astronomical History and Heritage. 25 (2): 213–226. doi:10.3724/SP.J.1440-2807.2022.02.04.