Ceramic art has been with mankind from its earliest times and it is an integral part of the cultural and artistic history of the world. Few relics of ceramic art from ancient Iceland have been preserved. In this context, there exists the word 'deiglumór'. This ancient word for clay attests to the use of clay to make crucibles in Iceland in early centuries. This history has been forgotten, and yet the use of Icelandic clay was the basis for the fertile ceramic art history of the 20th century.