A little wonder, every day
Fact 2252 — what a sword fuller is for
1 / 2
AI-generated with OpenAI image generation. Prompt: “Photorealistic editorial cover for a museum article correcting the sword ‘blood groove’ myth. A historical European sword displayed in a museum case with its central blade groove visible under soft side lighting, no blood, no combat, no people, no readable text or logos. Educational artifact photography, portrait 4:5.”
Listen to fact0:00 / —
The lengthwise groove in a blade is often called a “blood groove,” but that is not its purpose. The Metropolitan Museum explains that a fuller reduces the blade’s mass without weakening it or diminishing its flexibility. The museum identifies stories about draining blood or breaking suction as misconceptions.

