Final answer:
Pre-contact cultures had major accomplishments in agriculture and architecture.
Step-by-step explanation:
Two Major Accomplishments of Pre-Contact Cultures
1. Agricultural Advancements: Many pre-contact cultures developed advanced agricultural systems that allowed them to sustain larger populations. For example, the Mayans used terracing techniques to create flat agricultural land on sloping terrains, while the Native Americans practiced the Three Sisters agriculture, growing corn, beans, and squash together to maximize yields.
2. Architectural Achievements: Pre-contact cultures also excelled in architecture. The Inca Empire built impressive stone structures without the use of mortar, such as Machu Picchu. Additionally, the indigenous tribes of North America, like the Anasazi, constructed intricate cliff dwellings using local materials.
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