Task: Question Generation
Input (English): The religious art of Nepal and Kathmandu in particular consists of an iconic symbolism of the Mother Goddesses such as: Bhavani, Durga, Gaja-Lakshmi, Hariti-Sitala, Mahsishamardini, Saptamatrika (seven mother goddesses), and Sri-Lakshmi(wealth-goddess). From the 3rd century BC, apart from the Hindu gods and goddesses, Buddhist monuments from the Ashokan period (it is said that Ashoka visited Nepal in 250 BC) have embellished Nepal in general and the valley in particular. These art and architectural edifices encompass three major periods of evolution: the Licchavi or classical period (500 to 900 AD), the post-classical period (1000 to 1400 AD), with strong influence of the Palla art form; the Malla period (1400 onwards) that exhibited explicitly tantric influences coupled with the art of Tibetan Demonology.
Output (English): When did the Licchavi period end?