The oldest extant Chinese characters from ancient China are Jiǎgǔwén characters carved on ox scapulas and tortoise plastrons. Brush-written examples decay over time and have not survived. During the divination ceremony, after the cracks were made, characters were written with a brush on the shell or bone to be later carved.(Keightley, 1978). With the development of Jīnwén (Bronzeware script) and Dàzhuàn (Large Seal Script) "cursive" signs continued. Moreover, each archaic kingdom of current China had its own set of characters.