When Galileo said that Ptolemy was wrong and that the earth was not in the middle of the solar system and had proof, people started to question the church because the church said that Ptolemy was right but had no proof.
The church got very mad at Galileo for questioning the church and saying they were wrong.
The church threatened to put Galileo in prison if he doesn't publicly say he was wrong and to say that Ptolemy was right.
After words the church put Galileo under house arrest and and not sell any of his books.
The solar system by Galileo
400 years after Galileo died of old age in his home the church realest Galileo from house arrest.