You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "the incan civilization lasted from before it was conquered by the?" whose answer is Spanish.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the inca civilization begin and end
Useful Output:

Doc 1: The Inca Civilization flourished in ancient Peru between c. 1400 and 1533 CE. The Inca Empire eventually extended across western South America.
Doc 2: The Inca Empire was a vast empire that flourished in the Andean region of South America from the early 15th century AD up until its conquest by the Spanish in
Doc 3: The Inca civilization flourished in ancient Peru between c. 1400 and 1533 CE. The Inca Empire eventually extended across western South America.
Doc 4: They began their conquests in the early 15th century and within 100 years had gained control of an Andean population of about 12 million people.
Doc 5: In the year 1438, Pachacuti, a Sapa Inca or an Incan ruler, began his conquest of the Andrean region, which led to the foundation of the Incan Empire. He also