The transition to behavioral modernity with the development of symbolic culture , language , and specialized lithic technology happened around 50,000 years ago according to some anthropologists .
Others point to evidence that suggests that a gradual change in behavior took place over a longer time span .
The transition to behavioral modernity with the development of symbolic culture , language , and specialized lithic technology happened around 50,000 years ago according to some anthropologists although others point to evidence that suggests that a gradual change in behavior took place over a longer time span .