Calendrical Pyramid Welcome! You are encouraged to register with the site and login (for free). When you register, you support the site and your question history is saved.The design of an ancient pyramid suggests that the population who built the structure had developed the solar calendar. The exterior walls of the partly ruined pyramid consist of four successive stairways, and if a platform at the top of the structure is imagined as a single step atop four stairways of 91 steps each, the total number of steps corresponds to the number of days in the year according to the solar calendar.Which of the following, if true, most strongly supports the hypothesis? The ancient pyramid was the only major architectural structure known to have been built by the population. No evidence of a solar calendar in the area predates the time of the construction of the pyramid. Diagrams of agricultural practices that have been dated to the same time as the pyramid also indicate knowledge of the solar calendar. Pyramids are among the simplest and earliest major architectural achievements of human civilization. Archeologists found a well-preserved model of the pyramid confirming that the structure in question had consisted of four, 91-step stairways and in fact had a final platform at the top. Review Answer