In this very year of 1458 occurred the first African Expedition of Affonso V, with its result, the capture of Alcacer. This event was probably the immediate cause of the writing of the Chronicle, because the record of his reign shows how the King cared more for African expansion than maritime expeditions, and how, like the old-time cavalier that he was, he preferred a land-war with the Moors to the seemingly theoretical, or at least distant, advantages to be gained by voyages of discovery. In 1460 D. Henrique died, leaving the fruit of his ceaseless endeavours to be plucked by other hands; since it was not until 1498, when Vasco da Gama cast anchor off Calicut, that the Infant's expeditions came to their legitimate conclusion, and a century of efforts received their reward. But if Azurara possessed many of the higher qualities of an historian, he was by no means devoid of shortcomings; and two incidents, now to be related, form serious blots on his character as a Chronicler and a man. In 1459 the Cortes met in Lisbon, and the Deputies of the People requested that a reform should be carried out in the Torre do Tombo, or Archive Office. They complained that the mass of old Registers which it was necessary to search in order to obtain copies of the documents existing there, together with the profitless prolixity of many of them, had long proved a source of great expense; and they therefore begged that such as were deemed of importance might be transcribed and the rest destroyed. This petition met with the King's approval, and Azurara charged himself with its execution, a task which seemingly occupied the remainder of his life.[38] He acted with a zeal worthy of barbarous times, and the memory of the destruction to which he condemned documents of the highest historical importance has been preserved by tradition, and his proscription is still spoken of. He appears to have been unconscious of the harm he did, for he prefaces each of the new Registers compiled by him from the old with an account of his handiwork. True it is that Barros praises Azurara for these Registers, but in reality they are only "dry, imperfect abstracts", as one writer calls them, for they throw little light on the periods to which they relate, and were, besides, the cause of the loss of their originals. Fortunately, however, some records escaped the general destruction, for it happened that certain Municipalities had previously obtained transcripts of the most precious, while others that existed in duplicate in the Archives, unknown to anyone, came to light during the administration of another Guarda-Mór.[39] The authorities of the City of Oporto obtained leave from Affonso V, on the 23rd March 1447, to have copies made of all the documents in the Torre do Tombo which related to them in any way, and these were furnished on December 25th, 1453, when Lopes was still Keeper of the Archives.