Topic: 700 Bc

Evidence suggests a global shift in calendar systems occurred around 700 BC, as multiple cultures moved from a 360-day year to a 365-day year simultaneously. Scranton notes that while modern computer programs can verify solar eclipses back to 709 BC, astronomical reports prior to that date cannot be mathematically verified using current orbital models. This discrepancy points toward a physical change in the Earth's orbit or the solar system's mechanics within human history.