William Adams, the historical figure which the character John Blackthorne was based on, spoke a number of languages, including Portuguese.
The wife of a Samurai would receive a small tanto called a kaiken, a small dagger, as a wedding gift.
The Samurai carried two swords: Katana (long sword) and Wakizashi (mid sword). The Katana was used by foot soldiers, and provided a longer reach to initiate and prevent attacks, while the Wakizashi (pronounced wa-kee-za-she) is a shorter sword that is primarily used in close combat situations, especially indoors.Moreover, Wakizashi was used as a backup in case the katana became unusable, and to commit seppuku if necessary. A third worn weapon, the Tanto (dagger) was employed for combat and seppuku as well. The generic names for the Katana and Wakizashi are called Daito (long sword) and Shoto (short sword), and worn together they are called Daisho (long and short).
Based on the 1975 novel Shogun written by James Clavell, which was first adapted into a miniseries Shogun (1980) starring Richard Chamberlain.
As Portugal was not as populous or militaristic as Spain, it generally did not conquer indigenous populations or even create colonies with the goal of settling them - the Portuguese instead operated many feitorias (fortified trading posts) in coasts around the world in Brazil, the west coast of Africa, the Cape of Good Hope, western India, southern China, and finally in the artificial port of Dejima in Nagasaki. The Japanese received the Portuguese with much suspicion, especially as the Portuguese were interested not only in trading with the Japanese, but converting the Japanese to Christianity. The spread of Christianity to Japan would cause much social turmoil and political discontent, as the Shogun and many daimyo considered the new religion to be a threat to their authority and Japanese traditions, and did their utmost to exterminate it. Eventually, the Portuguese were expelled, but Japan had since been opened to limited European trade, and the Portuguese were soon replaced with the Dutch, who made no attempt to proselytize and restricted their interactions with the Japanese to trade.