Re-discovery
The very existence of the travels of Hasekura was forgotten in Japan until the reopening of the country after the Sakoku policy of isolation. In 1873, a Japanese embassy to Europe (the Iwakura mission) headed by Iwakura Tomomi heard for the first time of the travels of Hasekura when shown documents during their visit to Venice in Italy.
Read more about this topic: Hasekura Tsunenaga