The origins of yasak can be traced to a tax collected from native, primarily non-Turkic populations in the
Golden Horde. The word yasaq is a Russian variation of the Qazaq/Turk word 'Zhasaq', which has two meanings: • The first meaning is 'This is what you have to do', from a law decree of the time of
Genghis Khan. • The second meaning is a 'ten-man troop', the smallest unit of an army, which would come to collect a tribute of one-tenth of profits for the
Golden Horde; their name became associated with the tribute and was thereby borrowed into European languages. The exact time when the concept of yasak was introduced in
Muscovy is uncertain. It appears likely, however, that the tax was inherited by Muscovy from the
Volga khanates of
Kazan and
Astrakhan - two fragments of the Golden Horde that were subjugated by
Ivan IV in the 1550s. These territories were settled by a range of non-Christian peoples who were expected to pay yasak either in kind or cash. The late French scholar of Eurasian history, Renee Grousset, traces "yasaq" (Regulations) back still further in his classic work,
The Empire of the Steppes, to the moral code imposed by Genghis Khan on his original horde. The Yasaq continued to be practiced by Mongol hordes until they came under
Vajrayana Buddhist influences (in Mongolia and China) and Islamic influences (among the Golden Horde, in Persia, and in Central Asia) during successive centuries. The earliest mention of the tax is found in a letter sent by
Ismail (a ruler of the
Nogai Horde and ancestor of the
Yusupov family) to Tsar Ivan IV in 1559, three years after Ivan's conquest of the
Volga Delta and
Astrakhan. The border between the two polities was not yet established, and Ismail complained that Ivan's governor of Astrakhan demanded yasak from those inhabitants of the delta that Ismail considered his subjects: "in grain from those who farm and in fish from those who fish" == Nature ==