The cultural and social development of South America is a complex and diverse subject. First of all, South America is a very rich and diverse culture, with a fusion of many indigenous cultures, colonial history and modern culture. These cultures have unique forms of expression in art, music, dance and festivals. For example, the indigenous culture of the Andes region has a long history, while Brazil's samba and Argentina's tango are both world-famous dance forms. As for social development, the development levels of various countries in South America vary greatly in terms of economy, education, infrastructure and social services. For example, Argentina, Chile and Brazil are relatively developed in some aspects, while some countries such as Venezuela and Bolivia face more economic and social challenges. When discussing cultural and social development, it is inaccurate and biased to use words such as "barbaric". Cultural diversity and complexity should be respected, and the evaluation of social development should also take into account multiple factors such as history, geography, economy and social structure.