It was discovered by Eduard Helly in 1913, but not published by him until 1923, by which time alternative proofs by Radon (1921) and König (1922) had already appeared.
하지만 1923년까지는 그는 출판하지 않았고, 그 때는 이미 Radon (1921)와 König (1922)에 의해서 다른 증명이 나왔었다.