So, a long, long time ago, there were some people from a place called Spain who liked to explore and find new things. These people were called conquistadores.
They believed that they were on a mission to spread their religion and culture to other parts of the world. They traveled to places like Mexico, Peru, and other parts of Latin America to explore and conquer new lands.
When they arrived in these new places, the conquistadores often brought weapons and soldiers with them. They would use these weapons and soldiers to defeat the people who were already living there, and take control of the land.
The conquistadores also brought diseases with them that the people there had never been exposed to before. Sadly, many people got sick and died because of these diseases.
Even though the conquistadores did some bad things, they also did some good things. They built new cities and helped bring about new technologies and ways of living to the places they conquered.
Overall, the conquistadores were a group of people from Spain who explored and conquered new lands in the name of religion and culture. While they did some bad things, they also did some good things and helped to shape the world we live in today.