In this article, the facts narrated in the tradition «Pan, queso y raspadura», by Ricardo Palma, will be compared with the historiographic sources on the battle of Ayacucho. On the one hand, we have the literary value of the story, which highlights the emotional aspects around the events and national heroes of the battle; and, on the other hand, we have the events of history recorded in different historiographic sources. It is not intended to point out the veracity or falsity of the text of the Bibliotecario Mendigo, but to emphasize its importance as an intimate, loyal, and patriotic description of a historical event, such as the battle of Ayacucho.

Breast cancer is the leading cause of mortality in women worldwide. One of the biggest challenges for physicians and technological support systems is early detection, because it is easier to treat and establish curative treatments. Currently, assistive technology systems use images to detect patterns of behavior with respect to patients who have been found to have some type of cancer. This work aims to identify and classify breast cancer using deep learning models and convolutional neural networks (CNN) with transfer learning. For the breast cancer detection process, 7803 real images with benign and malignant labels were used, which were provided by BreaKHis on the Kaggle platform. The convolutional basis (parameters) of pre-trained models VGG16, VGG19, Resnet-50 and Inception-V3 were used. The TensorFlow framework, keras and Python libraries were also used to retrain the parameters of t...