This blew my mind: In 1614, the #Indigenous #Nahua noble and #historian Chimalpahin Messenger with Shield, documented (in Nahuatl!) the arrival of the Japanese embassy in Mexico on their way to Spain.
Chimalpahin writes out the dates using the Mexica calendar as well, staring with 1-Tochtli (1-Rabbit) and goes into great detail about how the Japanese dressed and acted. Amazing.
If you read Spanish, Miguel León-Portilla translated the diaries. You can find them here, with ample background: https://sci-hub.se/10.2307/40312014