Bowditch, Charles P, Hagar, Stansbury · United States : [s.l.] · leaf 156
ssolar calendar by interpolations in its own way, and this waywas different in different cities. Period 2. Unity— From 9.12.15.0.0 to about 9.16.5.0.0 (687a.d. to 756 a.d.), during which the lunar calendar under theleadership possibly of Palenque was standardized into a lunar yearof exactly 12… … qi cdJ
