Namoratunga calendrical alignment

What it is

Nineteen basalt pillars that, according to their discoverers, point to stars used in the 354-day Borana calendar. It would be a prehistoric calendrical observatory of East Africa.

Proposed by Lynch and Robbins (Science, 1978); Soper (1982) and others questioned the dating and the alignments. It is included as a hypothesis, not as fact.

What it led to

• study of the Borana calendar as an astronomical system
• African archaeoastronomy
• debate over pastoral calendars

Made possible

• Borana astronomical calendardocumentado en 1973 (origen antiguo)

Links

Sources✓ verified 2026-09-23

• http://www.as.utexas.edu/~wheel/africa/namoratunga.htm
• https://link.springer.com/rwe/10.1007/978-1-4020-4425-0_8803