Eventually I want to add achievements in Astronomy from Mesoamerica.

 The Mayans were an ancient civilization that flourished in the tropical lowlands of what is now Guatemala. They were known for their skills in: Agriculture, Pottery, Writing, Calendars, Mathematics, Astronomy, Hieroglyphic writing, Ceremonial architecture. 

 The Aztecs were a Pre-Columbian Mesoamerican people who lived in central Mexico in the 14th, 15th, and 16th centuries. They were a nomadic culture who settled on several small islands in Lake Texcoco in 1325. There, they founded the town of Tenochtitlan, which is modern-day Mexico City. 

 The Olmecs  were the earliest known major Mesoamerican civilization. Following a progressive development in Soconusco, they occupied the tropical lowlands of the modern-day Mexican states of Veracruz and Tabasco. It has been speculated that the Olmecs derived in part from the neighboring Mokaya or Mixe–Zoque cultures. - wikipedia

 The Zapotec were a pre-Columbian Mesoamerican civilization that lived in the Oaxaca Valley in southern Mexico.  Their culture originated at least 2,500 years ago.  They were the dominant group in the Valley of Oaxaca from around 500 B.C.E. . 

 The Toltecs were a Mesoamerican civilization that existed from 900 to 1168 in central Mexico.  They were located in the city of Tollan (Tula).  The Toltecs were known for their craftsmanship and civilization.  They were legendary sculptors and artists who left behind many impressive monuments and stone carvings. 

 The Nahuas are a distinct tribe of Native Americans who developed their own culture over thousands of years. They are the ancestors of almost all current inhabitants of Central America.