This country was once home to Maya and Aztec civilizations came under Spanish control in the 1500's and since 1917 has been a representative democratic republic with a presidential system?

The country you are referring to is Mexico. It was home to advanced civilizations such as the Maya and Aztec before coming under Spanish control in the early 1500s. Following a long struggle for independence, Mexico established a representative democratic republic in 1917, which features a presidential system of governance. Today, Mexico is known for its rich cultural heritage and diverse history.