Topic

Ancient calendars

The study of how pre-modern societies divided and reconciled the year, including lunisolar schemes, fixed-week systems and the intercalation used to keep them in step with the seasons.

Current clusters

science1 publisher

Tel Aviv study argues Qumran used its 364-day calendar until seasonal drift made it unusable

Eshbal Ratzon's reconstruction, published in Tarbiz, places the 364-day calendar in real use during the sect's early decades and ties its abandonment to a shortfall of about a day and a quarter a year.

Publishers:sciencedaily.com

Reality

Evidence38
Adoption: Insufficient
Hype gap+35
Incentives62
Confidence42