the emperor declared Luther a heretic when he refused to take back his teachings, and forbade the printing or selling of his writings
It was the Diet of Worms.
The Diet of Worms in 1521 was an imperial council that was convened to decide the fate of Martin Luther. It was held in Worms, Germany. The Holy Roman Emperor Charles V presided over the diet. Luther's Protestant views were condemned as heretical by Pope Leo X in the bull Exsurge Domine in 1520. As a result Luther was summoned to either renounce or reaffirm them at the Diet of Worms on 17 April 1521. When he appeared before the assembly Luther was presented with a table filled with copies of his writings. Johann van Eck asked Luther if he still believed what these works taught. Luther asked for time to think about his answer and he was given an extension. Luther prayed, consulted with friends and mediators and presented himself before the Diet the next day. When he was asked the same question the next day, Luther apologized for the harsh tone of many of his writings, but said that he could not reject the majority of them or the teachings in them. Luther respectfully but boldly stated, "Unless I am convinced by proofs from Scriptures or by plain and clear reasons and arguments, I can and will not retract, for it is neither safe nor wise to do anything against conscience. Here I stand. I can do no other. God help me. Amen." On May 25, Emperor Charles the Fifth issued his Edict of Worms, declaring Martin Luther an outlaw.
He had been called before this august diet (a deliberating council) to answer charges of heresy.
No, he was a preacher.
never
It's not the: "The Diet Of Worms" it's the Edict of Worms
Edict of Worms
An imperial diet tried Martin Luther in Worms, Germany.
Worms Blast happened in 2002.
Worms Armageddon happened in 1999.
Warring Worms happened in 2002.
Worms Golf happened in 2004.