Results

Dataset Escalation — Signal Grows with Data

Z-score at 50 km threshold. Flukes shrink with more data; real signals grow.

UNESCO (871)

1.92

Pleiades all (34,470)

0.19

Pleiades pre-2000 BCE (778)

6.45

Portal only (61,870)

23.71

Merged (61,913)

25.85

25.85

Higgs boson discovery threshold: Z = 5. Medical trial threshold: Z ≥ 2.

Age Dependence

Older sites cluster more strongly on the circle. This holds across both databases independently.

Megalithic Portal

Prehistoric

Z = 20.86

20.86

Later periods

Z = 8.30

8.30

Ratio: 2.51× stronger for prehistoric sites

Pleiades Gazetteer

Pre-2000 BCE

Z = 10.68

10.68

All periods

Z = 3.84

3.84

Z at 25 km threshold. Independent replication.

Type Enrichment

Percentage of each site type that falls within 50 km of the circle:

Top Types by Circle Proximity

Geoglyphs

24.4%

Pyramids

16.4%

Ancient Temples

6.2%

Mines / Quarries

4.9%

Palaces

2.9%

Carvings

2.7%

Earthworks

2.5%

Standing Stones

2.2%

Settlements

1.7%

Passage Graves

0.0%

Settlement Baseline Test

The critical geographic control — are all types enriched, or just monumental ones?

Monumental vs. Settlement Sites (Pleiades, ancient only)

Monumental (185 sites)

Z = 6.74

6.74

Settlements (414 sites)

−2.91

Monumental enrichment 2.52×

Settlement enrichment anti-clustered

Z-score difference 9.65

Interpretation: If the circle simply traced fertile geography, settlements would cluster on it too. They don't. The signal is specific to monumental architecture — pyramids, temples, and geoglyphs — not to where people lived.

The Eight Clusters

Cluster	Sites	Share	Oldest	Key sites
Egypt / Levant	315	8.6%	~7000 BCE	Giza, Siwa, Petra, Nazareth, EES & BORDERSCAPE sites
Peru / Andes	2,467	67.7%	~3600 BCE	Nazca Lines, Palpa, Cusco, Ministry of Culture sites
Easter Island	153	4.2%	~700 CE	Moai platforms (ahu)
Amazon / Brazil	62	1.7%	~1000 CE	Tapajós sites, Acre geoglyphs, Marajó earthworks
Iran / Persia	44	1.2%	~5000 BCE	Persepolis, Pasargadae, Tall-e Bakun
Indus Valley	164	4.5%	~2500 BCE	Mohenjo-daro, Harappan sites in Sindh
Southeast Asia	143	3.9%	~1250 CE	Sukhothai, Preah Vihear, That Nang Ing
Other	297	8.1%	Various	Kebar Valley, Caution Bay, North Africa

Pre-Construction Evidence

Each cluster includes sites that predate known cultural contact between regions:

Cluster	Oldest site	Date	Type
Egypt / Levant	Megalithic Portal sites	~7000 BCE	Various prehistoric
Iran / Persia	Tall-e Bakun	~5000 BCE	Settlement
Peru / Andes	Palpa Lines	~500 BCE	Geoglyph
Indus Valley	Mohenjo-daro	~2500 BCE	City
Easter Island	Moai ahu platforms	~700 CE	Monuments
Amazon / Brazil	Acre Geoglyphs	~1000 CE	Earthworks
Southeast Asia	Sukhothai	~1250 CE	Temple

Note: Three of the eight clusters contain sites older than 2000 BCE, predating any known long-distance maritime contact between the Old World and the Americas. Whatever produced this pattern, it was not a single historical event.

Summary

25.85 Overall Z-score

3,645 Sites within 50 km

89 Expected by chance

3.6× Enrichment

The pattern is statistically overwhelming, age-dependent, type-specific, and independently replicated across seven independent databases. It is not explained by geographic coincidence. The mechanism remains unknown.

Paper 2 Findings

The following figures are from the companion study From Migration to Monumentality: The Alison Great Circle as a 60,000-Year Human Corridor (Allan 2026, submitted to PLOS ONE). All analyses use distribution-matched Monte Carlo simulation (10,000 iterations) against latitude-profile-matched random great circles. Preprint on Zenodo → | Explore the interactive migration map →

Figure 1: World map showing the Great Circle corridor with sites color-coded by epoch — Figure 1. The Alison Great Circle corridor with sites color-coded by epoch from Out-of-Africa dispersal (>50,000 BP) to Bronze Age monuments.

Figure 2: Monument-settlement divergence across seven databases — Figure 2. Monument-settlement divergence replicated across seven independent databases. Monuments: ~2.5× enrichment (land-constrained). Settlements: anti-clustered (Z = −2.91).

Figure 3: Temporal layering of corridor activity 60,000 BP to Bronze Age — Figure 3. Temporal layering of corridor activity, 60,000 BP to Bronze Age. ★ = statistically significant enrichment. Grey band = Last Glacial Maximum gap (expected).

Figure 4: Egypt close-up with Ahramat Branch intersection — Figure 4. Great Circle–Ahramat Branch intersection in the Memphis necropolis. Compound probability p = 0.00016.

Figure 5: Directional Ripley's K clustering analysis — Figure 5. Directional Ripley’s K-function. Pyramids are arranged along the Great Circle axis (parallel/perpendicular ratio = 0.08, p < 0.0001).