What was the purpose of the complex calendars developed in the Incas?

The complex calendars developed by the Incas served multiple purposes, including:

1. Agricultural planning: The Inca calendar helped in determining the optimal timing for planting and harvesting crops, based on the cycles of the moon and the seasons.

2. Religious and ceremonial events: The calendar was used to schedule important religious festivals, ceremonies, and rituals that were integral to Incan religious beliefs and practices.

3. Social organization: The calendar played a role in organizing and coordinating social events, such as community gatherings, celebrations, and feasts.

4. Governance and administration: The calendar helped in the organization and administration of the vast Incan empire, including tracking important dates and events related to the rulers and the state.

Overall, the Inca calendar was a crucial tool for timekeeping, organization, and cultural expression in Incan society.