context: In addition to his own books and articles during this period, he also joined Inazo Nitobe in crafting what became his most well-known book, Bushido: The Soul of Japan.
source: The prolific writer was also a prolific traveller, making eleven trips to Europe--primarily to visit the Netherlands.
reference_original: O escritor prolífico também era um viajante prolífico e fez onze viagens para a Europa — principalmente para visitar a Holanda.
reference_flipped: A escritora prolífica também era uma viajante prolífica e fez onze viagens para a Europa — principalmente para visitar a Holanda.