Factual error: When the large Dutch guy tells his story about his life in Holland, there are a several windmills. However, the blades are placed on the wrong side, that way it's not possible for a windmill to turn clockwise, which it does. If the blades were placed correctly, they would still turn to the wrong side, because wooden windmills in The Netherlands are always turning counter-clockwise.
Samurai Champloo (2004)
Episode list - season 2
Starring: Steve Blum, Ayako Kawasumi, Ginpei Sato, Kazuya Nakai
More mistakes in Samurai Champloo
Shige: "There were men on top of horses and horses on top of men, piled one atop the other. The valley was laid open before the men. Its depth was great and wide. But the number of soldiers that died that day would line its two rock walls from side to side. Corpses stacked up to build a mountain of death and it gushed rivers of dead men's blood." The Tale of Heike, Volume seven, Descent into Kurikawa.