The Theban year, also known as the Egyptian civil year, is a notable term in ancient Egypt's calendar system. This term refers to the 365-day solar calendar utilized by the ancient Egyptians, focused primarily on the agricultural cycles of the Nile River. Synonymous terms for the Theban year include the Egyptian year or the civil year. This calendar was divided into three seasons: inundation, growth, and harvest. Each season lasted four months, with each month consisting of three ten-day weeks. The Theban year played a significant role in Egyptian society, as it aided in organizing farming activities and religious festivals throughout the ancient civilization's history.