During the period from 453 to 1453, advances in accounting continue , including assistants. However, for [Gertz, 1996], the books of Francisco Dating (1366-1400 ne) show the image of a double entry accounting that involves, for the first time, patrimonial accounts proper; In fact, since the Profit and Loss account had been invented, the problem of merchants of this period had been solved by not being able to carry their merchandise in a single account due to the fact that these effects had, logically, two prices. Of cost of acquisition and of sale, resulting in that the obtained profit made the account of Caja with a difference in the entries of income and expenses, This accounting also shows the innovation that opened and closed operations biannually with a financial statement where the assets of the economic unit were clearly stipulated, informing the results of the operations as the individual participation of the partners, which determined Of the balance of the personal ac...