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There aren't exact information about previous flags. From beggining of 1920 and till the middle of 1980 year much has changed in design of flag of TASSR.
In 1990 Tatarstan has ceased to be autonomous. So It was decided to take a temorary flag of Tatar community center. During the year, comission had been developing national symbols. The white moon and star adorn the flag, which is divided by a diagonal, combining shades of red and green colours.
On the 29th of November,1991, by the decision of the Supreme Council, the flag became national symbol of Tatar Republic. It was a quite long way to set the present flag.