@fincs @endrift right! Before they were called Satsuma tubers, they were Ryūkyū tubers, and before that, Kara (Chinese) tubers, reflecting how the Portuguese brought them to China, from China to the Ryūkyū kingdoms (the trade backdoor between China and Japan), and then finally to the Satsuma domain, who dominated the Ryūkyū kingdom. It’s a big ol chain of cultural transmission along a trade route expressed in the name.