Malaysia has a strong oral tradition that has existed since before the arrival of writing, and continues today. Each of the Malay Sultanates created their own literary tradition, influenced by pre-existing oral stories and by the stories that came with Islam. The first Malay literature was in the Arabic script. The earliest known Malay writing is on the Terengganu stone, made in 1303. Chinese and Indian literature became common as the numbers of speakers increased in Malaysia, and locally produced works based in languages from those areas began to be produced in the 19th century. English has also become a common literary language. In 1971, the government took the step of defining the literature of different languages. Literature written in Malay was called "the national literature of Malaysia", literature in other ''bumiputera'' languages was called "regional literature", while literature in other languages was called "sectional literature". Malay poetry is highly developed, and uses many forms. The ''Hikayat'' form is popular, and the ''pantun'' has spread from Malay to other languages.