During his reign he held a number of such gatherings and they became a common tool used to enact major pieces of legislation or to decide controversial issues .
The first zemsky sobor was held by tsar Ivan the Terrible in 1549 .
During Ivan the Terrible 's reign Ivan the Terrible held a number of such gatherings and they became a common tool used to enact major pieces of legislation or to decide controversial issues .
The first zemsky sobor was held by tsar Ivan the Terrible in 1549 .