The three important factors leading to the success of the Spanish in conquering and colonizing parts of central and North America were-
1- Money- Spain's interest was in exploring and colonizing the Americas for the pursuit of wealth. America was supposed to have huge sources of gold and other precious materials, and Spain wanted as much control over these sources as possible.
2- Desire to convert Native Americans to Christianity
3-Europe brought diseases- Native people of America had no immunity to the diseases that European explorers and colonists brought with them. Diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to American Indians.
