The Correlation Question
Explanation of the colors: |
in the range of one sigma |
in the range of two sigma |
in the range of three sigma |
outside of the range of three sigma |
During the last century many correlation constants are proposed to correlate the ancient Maya calendar and the Christian calendar. Chronological data from different sources leads to different expectations independent of a correlation. The internal accuracy for each expectation is given below, and the reliability of the sources and their chronological interpretations are discussed in Wells, Fuls (2000). The expectations are tested for various correlations as seen in the following table. The background colors are indicating how the data and the correlation fit to the expectation.
Correlation |
Astronomical Data |
Chronicles |
Geophysical Data |
Duration of Postclassic |
Number |
Author(-s) |
Venus Table |
Venus Window |
Moon Age |
Eclipse Table |
Tropical Year |
Calendar Round |
End of Katun 13 Ahaw |
Archaeo- magnetic |
Obsidian hydration |
C-14 |
10.0.0.0.0 to AD 1511 |
accuracy: |
+- 5 days |
+- 5 days |
+- 1.5 days |
+- 3 days |
+- 5 days |
+- 3 days |
1536 to 1541 |
+- 30 years |
+- 70 years |
+- 100 years |
about ? years |
489384 |
Spinden |
-265 days |
?? |
9.7 days |
-59 days |
-18.1 days |
0 and 6 days |
1536 |
no |
no |
no |
941 years |
584285 |
Goodman, Martinez, Thompson |
17.6 days |
no |
0.3 days |
18.7 days |
43.4 days |
1 and 7 days |
1539 |
no |
no |
yes |
681 years |
622261 |
Böhm |
-3.8 days |
no |
0.2 days |
-3.0 days |
52.5 days |
11 and 17 days |
1643 |
yes |
yes |
yes |
577 years |
626927 |
Kreichgauer |
-1.0 days |
no |
0.5 days |
11.2 days |
46.0 days |
4683 and 4689 days |
1400 |
yes |
yes |
yes |
565 years |
660208 |
Wells, Fuls |
3.2 days |
yes |
0.0 days |
5.8 days |
1.6 days |
4 and 10 days |
1491 |
yes |
yes |
yes |
473 years |
© Copyright by Andreas Fuls, Berlin 2008