Correct answer:
A modern scholarly article
In Mesoamerican and South American cultures it is very common to find objects such as pieces of ancient pottery. Civilizations such as the Aztec and Maya have several articles made in ceramics. Bernal Díaz del Castillo is an example of Spanish conquistadors who wrote letters during the conquest of Mexico, they are useful to understand how the conquest was. Finally, one of the civilizations that managed to implement suspension bridges made of rope were the Incas in Mexico. All of the above are valuable artifacts for historians.
