Following The Milky Way Path of Souls

Cahokia was a major Native American city on the east side of the Mississippi River, across from the modern-day city of St. Louis, Missouri. Cahokia flourished from c.1050 AD to c.1250. In this paper archaeoastronomic and ethnohistoric data along with computer simulations are used to explore the idea that the Cahokia site axis and the Rattlesnake Causeway were intentionally aligned to the Milky Way. It is proposed that this alignment accounts for the peculiar 5° offset of the site from the cardinal directions. Following Sarah Baires, it is suggested that Rattlesnake Causeway was a terrestrial metaphor for the Milky Way Path of Souls used by the deceased to cross to the Land of the Dead. Rattlesnake Mound at the end of the Causeway is suggested as a portal to the Path of Souls. According to ethnohistoric accounts, the Land of the Dead was guarded by a Great Serpent – suggested here as visible in the night sky as either the constellation Serpens or that of Scorpius.

Analysis of Structures’ Orientations in Archaeoastronomy

In the scope of archaeoastronomy, the analysis of a large number of structures through the frequency histograms for their azimuths and declinations can identify singular patterns of orientation. Conclusions often rely on qualitative assessments. Quantitative assessments have been proposed by using as null hypothesis a pure random distribution of azimuths over the 360º horizon. In some cases, such as orientation of Christian churches, the histograms or spectra are composite, with peaks overlapping a continuous and not uniform background. This paper presents a methodology for assessing the statistical significance of the net area of a peak in the histogram in relation to the local background level. The spectra use Normal kernel functions. The background contribution is estimated from the area of the trapezoidal polygon under the peak, and it is interpreted as the probability parameter for a Binomial distribution. The methodology is illustrated with a real case study which includes the azimuth and declination histograms for a set of churches from southern Spain dedicated to the Virgin of the Assumption. The method is more restrictive than previous approaches.

Decoding the Urban Plan of the City of Pilsen (Plzen)

The historic centre of the city of Pilsen in western Bohemia, today a region of the Czech Republic, was constructed at the end of the thirteenth century, at a time when Gothic architecture was universal across most of western and central Europe. The Gothic style had emerged and developed during an era when social and economic changes were favouring the development of new urban settlements, and when the translation of ancient Greek natural philosophy, including astronomy, was giving rise to a new intellectual movement. This revival of the natural sciences was inevitably bound up with the Roman Catholic Church, since much of this knowledge had been preserved within monastic institutions and was now being used by theologians/natural philosophers who wanted to apply reason to theology. This paper’s analysis of the urban plan of the historic centre of Pilsen is an attempt to investigate the possible influence that the science of astronomy had on architectural thought and creativity in western Bohemia, and how this was represented in the light of scientific advancement.

Günther Oestmann, The Astronomical Clock of Strasbourg Cathedral: Function and Significance. Trans. Bruce W. Irwin

Günther Oestmann, The Astronomical Clock of Strasbourg Cathedral: Function and Significance. Trans. Bruce W. Irwin Leiden and Boston: Brill, 2020. Hardback xvi, 348 pp. ISBN: 978-90-04-42346-6. $179.00.

Possible New Solstitial Sightline in the Stonehenge Landscape

The landscape around Stonehenge contains a number of major Early Neolithic monuments dating to the fourth millennium BC, including the Stonehenge Cursus, the Lesser Cursus, Robin Hood’s Ball causewayed enclosure and several long barrows. A previously unsuspected Early Neolithic causewayed enclosure whose northeast rim was uncovered in 2016 on the slopes of Lark Hill, just to the north of the World Heritage Site boundary, represented a major new discovery. About a millennium after the construction of the Lark Hill Enclosure, a line of at least six timber posts was erected crossing from the interior to the exterior of the old enclosure, just to one side of a wide entrance. The line is slightly curved but the last three posts in the line face directly out towards the position of June solstice sunrise. While several short and longer rows of posts are now known to have been built in this vicinity both during the Later Neolithic and at later times, there are several reasons for believing this solstitial alignment to have been intentional and meaningful. It may even have represented the “monumentalisation” of an earlier broadly solstitial alignment of natural features, as has been suggested at Stonehenge itself.

Chris Scarre and Luiz Oosterbeek, Megalithic Tombs in Western Iberia: Excavations at the Anta da Lajinha

Chris Scarre and Luiz Oosterbeek, Megalithic Tombs in Western Iberia: Excavations at the Anta da Lajinha Oxford and Philadelphia: Oxbow Books, 2020. Hardback, 242 pp. ISBN 978-1-78570-980-7. £45.00.

Cultural Astronomy in Hispanic-Indigenous Contexts of Central Chile

We present the results of an archaeoastronomical analysis of structures dating from the Inca and early colonial periods in the Mapocho River basin, Chile. Our purpose is to show possible continuities or ruptures in the creation and management of architectural and natural spaces, particularly those linked to the observation of astronomical phenomena with ceremonial and calendrical significance in the Andean world. We focus on Santiago, where we undertook topographical and horizon survey work at the Main Square, Metropolitan Cathedral, San Francisco Church and Santa Lucía Hill, and evaluate documentary and ethnographic sources. Using models developed in cultural astronomy and landscape archaeology, we found these places were ancient observation spots for the Sun and Moon around the solstices, equinoxes and lunar standstills. Sightlines (ceques) may have connected these places to potentially sacred elements of the environment from a central point located in the Main Square (haukaypata).

Steven R. Gullberg, Astronomy of the Inca Empire: Use and Significance of the Sun and the Night Sky

Steven R. Gullberg, Astronomy of the Inca Empire: Use and Significance of the Sun and the Night Sky Cham, Switzerland: Springer, 2020. Hardback, 370 pp., 42 b/w illus., 275 colour illus. ISBN 978-3-030-48365. €135.19.