Task: Question Generation
Input (English): Much of the early extant evidence for the origins of Mahāyāna comes from early Chinese translations of Mahāyāna texts. These Mahāyāna teachings were first propagated into China by Lokakṣema, the first translator of Mahāyāna sūtras into Chinese during the 2nd century CE.[note 39] Some scholars have traditionally considered the earliest Mahāyāna sūtras to include the very first versions of the Prajñāpāramitā series, along with texts concerning Akṣobhya Buddha, which were probably composed in the 1st century BCE in the south of India.[note 40]
Output (English): The earliest Mahayana sutras included the very first versions of what series?