Portuguese poet Luís de Camões died #OTD in 1580.
"Os Lusíadas" (1572) is considered Camões' magnum opus. The epic poem consists of ten cantos and is written in ottava rima. The poem celebrates the voyage of Vasco da Gama and the Portuguese discoveries, blending historical events with mythological elements. It extols the virtues of bravery, patriotism, and the divine mission of the Portuguese people.
Books by Luís de Camões at PG:
https://www.gutenberg.org/ebooks/author/1183