Abstract
The trade or exchange of goods and services is considered an economic and vital activity as has been evidenced in the course of history, fulfilling the purpose of meeting needs that, due to various factors, cannot be satisfied. It is for this reason that it is pertinent to carry out a historical journey against one of the fundamental treaties for mercantilism such as the Vienna Convention of 1980. The purpose of which is to regulate commercial activities between the subscribed countries and to the same extent minimize the gaps that may arise from commercial relations, especially in the field of sales contracts, establishing itself, as well as a source of commercial law.
Taking a historical tour of the various treaties and conventions that allowed a consensual regulation of mercantilism which was promoted by the promoting organizations for the purpose of welfare and social harmony, such as the creation of the United Nations Commission for International Trade Law UNCITRAL or UNCITRAL, for its acronym in English United Nations Commission on International Trade Law. Among others, such as the beginning of the harmonic regulation of commercial law between the various subscribed State