Watch VoirFilms. The Scythians, skilled horsemen and nomadic conquerors, built a feared empire in the vast Eurasian steppe between the 9th and 3rd centuries B.C. All that remains are their graves: the Kourganes. In April 1999, a 2400 year-old Scythian tomb was discovered in Kazakhstan. It contained, among other treasures, twelve horses completely harnessed in gold, suggesting high social status.