Animal mating and birthing seasons match tally mark patterns in cave art across 30,000 years

Animal mating and birthing seasons match tally mark patterns in cave art across 30,000 years. Database contains 862 samples: 60 without Y symbol, 256 with Y symbol, largely from France and Spain but also further east Most samples date to the late Upper Paleolithic, approximately 20,000 to 11,700 years ago (Solutrean and Magdalenian periods) System was used identically across nearly 30,000 years from the Aurignacian to Magdalenian

The database holds 862 samples, mostly from France and Spain. Most date to 20,000-11,700 years ago (Solutrean and Magdalenian), yet the system was used identically for nearly 30,000 years. Researchers coined "RBS" (Relative to Bonason) for the spring-based interval calendar. Y marks correlate with birthing seasons, while unmarked numbers track mating seasons for aurochs, bison, horse, mammoth, and fish.

Key Facts

• Database contains 862 samples: 60 without Y symbol, 256 with Y symbol, largely from France and Spain but also further east
• Most samples date to the late Upper Paleolithic, approximately 20,000 to 11,700 years ago (Solutrean and Magdalenian periods)
• System was used identically across nearly 30,000 years from the Aurignacian to Magdalenian
• Researchers coined term RBS (Relative to Bonason) to describe the relative interval-based calendar starting from spring thaw
• Y symbol correlates with animal birthing seasons; marks without Y correlate with mating seasons, particularly for aurochs, bison, horse, mammoth, and fish

Source: Ice Age Calendar System Maintained for 20k years by Timeless with Fred Snyder