The calendar was an important Egyptian activity because it helped them keep track of time and plan agricultural activities. The ancient Egyptians relied heavily on agriculture, and their livelihoods depended on understanding the seasonal patterns of flooding and sowing. They used a lunar calendar, based on the cycles of the moon and the rising of the star Sirius, to determine the timing of important events such as the flooding of the Nile and the planting and harvesting of crops. This allowed them to effectively manage their agricultural activities and ensure a successful harvest. Additionally, the calendar was used to schedule religious festivals and ceremonies, as religious rituals were an integral part of Egyptian society.
