Everyone knows this famous phrase. It was attributed to Galileo Galilei, the famous astronomer who supported the theory, later proven true, that the Earth revolves around the Sun. Unfortunately, his controversial theories and his difficult relationship with the Church led to his works being burned. He was put under house arrest after he was forced to recant his claims. It is believed that, as he signed the renouncement of his theories, he muttered the above mentioned phrase.
It appears that the fact is not true. The phrase appeared for the first time, a hundred years after Galileo’s death and had no historical background to claim it. However, the story became so popular it is now believed to be a historical truth.