jai, 1st of all if you or me have not started reading our scriptures, we can not know the real & complete history of India. There are plenty of example which prove that India were greatest. Fir example till now Modern science is not able to reach the vadic smallest or largest measurement of time. Vedic time details: Krati Krati = 34,000th of a second 1 Truti = 300th of a second 2 Truti = 1 Luv 2 Luv = 1 Kshana 30 Kshana = 1 Vipal 60 Vipal = 1 Pal 60 Pal = 1 Ghadi (24 minutes) 2.5 Gadhi = 1 Hora (1 hour) 24 Hora = 1 Divas (1 day) 7 Divas = 1 saptaah (1 week) 4 Saptaah = 1 Maas (1 month) 2 Maas = 1 Rutu (1 season) 6 Rutu = 1 Varsh (1 year) 100 Varsh = 1 Shataabda (1 century) 10 Shataabda = 1 sahasraabda 432 Sahasraabda = 1 Yug (Kaliyug) 2 Yug = 1 Dwaaparyug 3 Yug = 1 Tretaayug 4 Yug = 1 Krutayug 10 Yug = 1 Mahaayug (4,320,000 years) 1000 Mahaayug = 1 Kalpa 1 Kalpa = 4.32 billion years