The Science of the Cosmos and Great Navigation

The Calendar of Cordoba – Time on Earth

In the 10th century, time was not an abstraction; it was a management tool for the State and a survival guide for the farmer. The "Calendar of Cordoba" (Kitāb al-Anwā’), attributed to Bishop Recemundo and the astronomer Arib ibn Sa'id, is the literary monument that demonstrates how knowledge of the cosmos was used to organize the prosperity of Al-Andalus.

1. Synchronizing the Cosmos and Agriculture

The calendar was not a mere list of days, but a technical guide linking the position of the stars with the cycle of life:

• Crop Prediction: It indicated the exact time for sowing and pruning based on solar and stellar movements.

• Water Management: It determined the periods of river rises and the opening of irrigation channels, optimizing the use of water we studied in the previous series.

  
  

2. A Treatise on Health and Phenology

The calendar also functioned as a wellness guide for the population:

• Seasonal Dietetics: It recommended which foods to consume according to the position of the stars to maintain the balance of the "humors."

• Natural Cycles: It recorded animal behavior and plant flowering, allowing for a total integration of the human being with their environment.

  
  

3. State Administration

For the Caliphate, time was power and organization:

• Tax Collection: The calendar set administrative and fiscal deadlines, synchronizing the kingdom's economy with the land's productive cycles.

• Festivities and Protocol: It organized public and religious life, ensuring that social order reflected the celestial order.

  
  

4. The Legacy of Coexistence

Perhaps the most fascinating aspect of the Calendar of Cordoba is that it represents the Total Inclusion that Mazhou champions. It is a work where Arabic astronomical knowledge merges with Latin and Christian traditions, creating a universal tool that served all inhabitants of the peninsula regardless of their faith.

"The Calendar of Cordoba teaches us that time is our most valuable resource. Al-Andalus did not just measure the stars; it learned to dance to their rhythm to create a prosperous, balanced, and eternal society."