Astronomy was one of the greatest achievements of the Mayan Empire. The Mayan Empire knew how many days were in a year and showed that they knew fall spring equinox. They demonstrated their knowledge of astronomy on their Pyramid of Kukulkan which they built their city around. The Mayan had 365 steps leading up the pyramid of Kukulkan one for each day of the year. They also demonstrated their knowledge of astronomy through the autumn and spring equinox. Every spring and fall equinox a snake shadow would slither down the pyramid leading to their sacred water source.
The Mayan also developed a calendar according to their knowledge of astronomy. Another great achievement of the Mayan Empire is their system of writing. The Mayan Empire had a system of writing based on nearly 800 signs in which each sign represent a full syllable. This style of writing is called glyphs and is still unknown today. But from these glyphs we are able to assume that they can read and write and therefore have written records.
One of the greatest achievements for the Incan Empire was their agriculture. The Incan Empire used a farming technique called terrace. This is when they cut into the mountain creating what looks like huge steps. These steps are now flat and not pointing downhill so they are able to farm on them. The Inca were also very advanced in their engineering skills. The Incas had a complex system of roads uniting its Empire through the Andes Mountains. The Inca Empire had to build their road through the Andes Mountains so they had to go up and down the hills/mountains which made it much harder.