The 1st century AD saw the widespread use of plate fibulae. Plate fibulae consist of a flat plate. Since there is little space between the fibula body and the pin (there is no arch to the body), plate fibulae could not be used to fasten much material and were therefore mainly decorative. Most plate fibulae have a hinge assembly on the back. Plate fibulae are generally associated with women’s graves. The most common forms of plate fibula in the 1st century AD were round (disc), diamond, oval and lunula (crescent- or moon-shaped).