In medieval and renaissance Europe, a number of visual signs are found that consist of three elements interlaced together in the same way that the Borromean rings are shown interlaced (in their conventional two-dimensional depiction), but the individual elements are not closed loops.
Di Eropa abad pertengahan dan renaisans, sejumlah tanda visual ditemukan yang terdiri dari tiga elemen yang saling terkait sedemikian rupa sehingga cincin Borromean ditunjukkan saling terkait (dalam penggambaran dua dimensi konvensional mereka), tetapi elemen-elemen individualnya tidak tertutup.