On this day in 921, two Frankish kings, Charles the Simple and Henry the Fowler, signed a pact of friendship aboard a ship in the Rhine river, which the pact recognized as the border between the kingdoms of each man.
You may use this page to discuss funny medieval names, or engage in other freewheeling, off-topic discourse. Find previous discussions in the Open Thread archive. Excepting the entreaty that you remain on topic, all of Slate’s usual commenting policies apply.
If you depend on this community and Slate’s journalism, please consider joining Slate Plus. We appreciate your support.