CM-204
Ancient Astronomy / Archaeoastronomy
Ancient astronomy is the study of how past cultures observed, named, measured, predicted, and ritualized the sky. Archaeoastronomy is the study of how sky knowledge appears in material remains such as monuments, temples, tombs, landscape alignments, inscriptions, calendars, and built sightlines. The strongest evidence shows that many ancient cultures carefully tracked the Sun, Moon, planets, stars, solstices, lunar cycles, eclipses, and seasonal patterns. Some sites, such as Chankillo in Peru, Stonehenge in Britain, Newgrange in Ireland, and many Mesoamerican buildings, contain credible astronomical orientations or horizon systems. Ancient written traditions from Mesopotamia, Egypt, Greece, India, China, and Mesoamerica also preserve sophisticated celestial records.
Open topicCM-208
Ancient Calendars
Ancient calendars were not one thing. Some were lunar, some solar, some lunisolar, and some combined ritual cycles with seasonal or political timekeeping. Their main problem was simple but difficult: lunar months, solar years, planetary cycles, and ritual cycles do not divide evenly into each other. The strongest evidence shows that many ancient societies made careful unaided-eye observations and built durable systems for agriculture, ritual, taxation, temple service, royal inscriptions, and historical memory. Egypt used a 365-day civil calendar, Mesopotamia developed sophisticated lunar and planetary records, Greece and Rome inherited and reformed complex civic calendars, and Mesoamerica used interlocking 260-day, 365-day, Venus, lunar, and Long Count systems.
Open topicCM-207
World Ages
World ages are stories or systems that divide history into phases. Some describe decline from a golden age to a corrupt age. Some describe repeated creations and destructions. Some connect ages to gods, metals, stars, suns, calendars, or moral cycles. Famous examples include Hesiod's Greek Ages of Man, Ovid's four ages, Hindu Yuga cycles, Mesoamerican world creations, and later esoteric or astrological age systems. World-age traditions are real as myth, literature, religion, and cultural memory. They do not automatically preserve exact scientific timelines. Some age systems are connected to astronomy or calendars, while others are moral, theological, political, or symbolic.
Open topic