What was the purpose of the complex calendars developed by the Incas? Was it to determine when to plant their crops

Yes, one of the main purposes of the complex calendars developed by the Incas was to determine the best timing for agricultural activities, including planting crops. The Inca civilization was highly dependent on agriculture, and they relied on accurate knowledge of seasonal cycles to maximize their harvests and ensure food security. The calendars helped the Incas predict and track the changing seasons, including rainy and dry periods, enabling them to plan their agricultural activities accordingly. Additionally, the calendars also played a role in religious and ceremonial events, as well as organizing social and economic activities.