Portuguese discovery of the sea route to India working on the Cape Route to India was charted by Portuguese King John II as a cost saving measure in the trade with Asia and also an attempt to monopolize the spice trade. Adding to the increasingly influential Portuguese maritime presence, John II craved for trade routes and for the expansion of the kingdom of Portugal which had already been transformed into an Empire. However, the project was not realized during his reign. It as his successor, King Manuel I, who designated Vasco da Gama for this expedition, while maintaining the original plan. However, this development was not viewed well
Portuguese India Armadas (1497–99) to the end of 1563. It is conserved at the Pierpont Morgan Library in New York City (ms. 525). Another codex of the same nature is the "Memória das Armadas que de Portugal passaram à Índia" ("Memory of the Armadas that from Portugal passed to India") or "Livro das Armadas", held by the Academia das Ciências in Lisbon. It covers the period from 1497 to 1567 (although missing the armada of 1517). The first Portuguese chronicler to attempt a systematic chronology of the India Armadas seems to have been Diogo do Couto, in his appendix to João de Barros's