Australian Aboriginal culture includes a number of practices and ceremonies centred on a belief in the Dreamtime and other mythology. Reverence and respect for the land and oral traditions are emphasised. The words "law" and "lore", the latter relating to the customs and stories passed down through the generations, are commonly used interchangeably. Learned from childhood, lore dictates the rules on how to interact with the land, kinship and community.
Over 300 languages and other groupings have developed a wide range of individual cultures. Aboriginal art has existed for thousands of years and ranges from ancient rock art to modern watercolour landscapes. Traditional Aboriginal music developed a number of unique instruments, and contemporary Aboriginal music spans many genres. Aboriginal peoples did not develop a system of writing before colonisation, but there was a huge variety of languages, including sign languages.