In 1497 on the first Portuguese India Armadas expedition to India, Diogo Dias served as escrivão (clerk) aboard Vasco da Gama's flagship São Gabriel.
Pada 1497, dalam ekspedisi Armada India Portugis pertama ke India, Diogo Dias bertugas sebagai escrivão (jurutulis) di atas kapal Vasco da Gama São Gabriel.