-
An Introduction to Physical Science
-
"Winter Solstice celebrations: a.k.a. Christmas, Saturnalia, Yule, the Long Night, the start of Winter, etc"
https://archive.today/20120629094610/http://www.religioustolerance.org/winter_solstice.htm -
Krupp, E C. Echoes of the Ancient Skies: The Astronomy of Lost Civilizations. Courier Corporation, 2012. pp. 119, 125, 1
-
North, John. Stonehenge. The Free Press, 1996. p. 530
-
Hadingham, Evan. Early Man and the Cosmos. University of Oklahoma Press, 1985. p. 50
-
"History of Christmas"
http://www.history.com/topics/christmas/history-of-christmas -
Astronomy in the Ancient World Early and Modern Views on Celestial Events
-
Solving Stonehenge: The New Key to an Ancient Enigma
-
The Oxford Handbook of Light in Archaeology
-
Plutarch. Moralia, with an English translation by Frank Cole Babbitt. Harvard University Press, 1936.
https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A2008.01.0239%3Asection%3D65 -
A Brief History of Ancient Astrology
-
The Origins of Feasts, Fasts and Seasons
-
Toward the Origins of Christmas
-
Time and the Calendars
-
Time in Roman Religion: One Thousand Years of Religious History
-
Time in Roman Religion: One Thousand Years of Religious History
-
Ovid, Fasti, translated by A. Wiseman and P. Wiseman. Oxford University Press, 2013, p.5
-
The Religion of the Mithras Cult in the Roman Empire: Mysteries of the Unconquered Sun
-
The Oxford Handbook of Christmas
-
Toward the Origins of Christmas
-
Church History
https://www.cambridge.org/core/journals/church-history/article/abs/origins-of-the-christmas-date-some-recent-trends-in-historical-research/3767138672A4C2DFBED6BD1B004FB78A -
Questions Liturgiques/Studies in Liturgy
https://doi.org/10.2143%2FQL.94.3.3007366 -
Cosmos: The Journal of the Traditional Cosmology Society
-
The Old English Metrical Calendar (Menologium)
-
Winters in the World: A Journey through the Anglo-Saxon Year
-
Bede: The Reckoning of Time
-
The Old English Metrical Calendar (Menologium)
-
Bosworth, Joseph. "Geóla". In An Anglo-Saxon Dictionary Online, edited by Thomas Northcote Toller, Christ Sean, and Ondř
https://bosworthtoller.com/15475 -
European Paganism
-
Jul, disting och förkyrklig tideräkning: Kalendrar och kalendariska riter i det förkristna Norden
https://www.academia.edu/1366945 -
Trashëgimia dhe tranformimi i kulturës popullore: materiala nga sesioni shkencor, mbajtur në Prishtinë më 7-8 shtator 1979
https://books.google.com/books?id=lGgKAQAAIAAJ -
Opoja dhe Gora ndër shekuj
-
Mitologjia ndër shqiptarë
-
The Encyclopedia of Religion
-
Tirta 2004, p. 250.
-
Xhemaj 1983, pp. 104–121.
-
Qafleshi 2011, pp. 43–71.
-
Tirta 2004, pp. 249–251.
-
Tirta 2004, p. 282.
-
"Goin' Japanesque!: Japanese Winter Solstice Traditions; A Day for Kabocha and Yuzuyu"
https://web.archive.org/web/20190807140225/http://goinjapanesque.com/06216/ -
Hindu Prayers, Gods and Festivals
https://books.google.com/books?id=b2iyCAAAQBAJ&pg=PT30 -
The Illustrated Encyclopedia of Hinduism: A - M
https://books.google.com/books?id=VNzLMgEACAAJ -
"Avodah Zarah 8a:7"
https://www.sefaria.org/Avodah_Zarah.8a.7 -
USNO
https://aa.usno.navy.mil/data/Earth_Seasons -
AstroPixels.com
http://www.astropixels.com/ephemeris/soleq2001.html -
Équinoxe de printemps entre 1583 et 2999
http://www.imcce.fr/newsletter/docs/Equinoxe_printemps_1583_2999.pdf -
Solstice d’été de 1583 à 2999
http://www.imcce.fr/newsletter/docs/Solstice_ete_1583_2999.pdf -
Équinoxe d’automne de 1583 à 2999
http://www.imcce.fr/newsletter/docs/Equinoxe_automne_1583_2999.pdf -
Solstice d’hiver
http://www.imcce.fr/newsletter/docs/Solstice_hiver_1583_2999.pdf -
Astronomical Algorithms