A Japanese Insight into Baudet–Schur–Van der Waerden’s Theorem

The great surprise is [KM] was published by the two Japanese mathematicians Sôichi Kakeya and Seigo Morimoto in 1930, much earlier than Erdős and Turán’s 1936 paper. How did they get a hold of the little-read Dutch journal, where Van der Waerden published his result just 3 years earlier in German? The authors do misspell the name of Baudet everywhere, even in the title: On a Theorem of M. Bandet [sic] and van der Waerden. But they were first to recognize that credit is due to both mathematicians, Baudet for creating the conjecture, and to Van der Waerden for proving it. Without the conjecture, Van der Waerden would have had nothing to prove!