56 page, color timeline covering Earth's history from 4500 Million Years Ago to 2100 CE. Each two page spread features a timeline divided into ten sections with time measurement scale. Great for an accordion timeline, timeline bulletin board, or print front-and-back for a notebook or binder.Bundle included 4 PDFs in a ZIP file, Printing instructions included. (1) Full Geologic Timeline dating 4,500Ma to Present with Precambrian, Paleozoic, Mesozoic, and Cenozic eras. 16pgs(2) Early Human History