Mahabharata 6.11.3

संजय उवाच · saṃjaya uvāca

चत्वारि भारते वर्षे युगानि भरतर्षभकृतं त्रेता द्वापरं च पुष्यं च कुरुवर्धन

catvāri bhārate varṣe yugāni bharatarṣabhakṛtaṃ tretā dvāparaṃ ca puṣyaṃ ca kuruvardhana

Our plain-language meaning of this verse is waiting for scholar review.