The Inca Empire was the largest empire in pre-Columbian America. These natives were the first to:
• Develop agricultural techniques such as platforms or terraces, to prevent erosion and take advantage of hillsides and hills.
• The Incas were skilled metal forgers, built bronze weapons and household objects. They built axes and clubs for the melee and among other military objects also throwing weapons such as bows and arrows, also using slings called huaracas.
• The works made in stone constitute the other great set of Inca achievements that are worth highlighting. It is usually limited to zoomorphic representations of auquénidos, llamas, vicuñas and alpacas, and fitomorfas, ears of corn, which are known as conopas and numerous bowls and containers popularly called mortars.
• Inca ceramics are different from the styles that predominated in the central-andean zone in the pre-Tahuantinsuyo era. The Inca style is characterized by its mass production, having found evidence of the use of a large number of molds that allowed to disseminate a highly standardized production.
• The Inca architecture is characterized by the simplicity of its forms, its solidity, its symmetry and by seeking that its constructions harmonize the landscape. Unlike coastal societies such as Chimú, the Incas used a rather sober decoration. The main material used was stone. In the simplest constructions it was placed without carving, not so in the most complex and important ones. The Inca builders developed techniques for building huge walls, real mosaics made up of blocks of carved stone that fit perfectly, without any pin passing between them.
• In the Inca astronomy the Sun stood out, and its cult seems to be a constant in the cultures of antiquity, no doubt because of the role that the astro king fulfills in the "agricultural calendar".
