Which list of banned books included Galileo's Dialogue after his trial?

The banned-books list that included Galileo's Dialogue after his trial was the Index Librorum Prohibitorum.

Galileo's Dialogue Concerning the Two Chief World Systems was published in 1632 and presented a debate between supporters of heliocentrism and geocentrism. Church authorities concluded that the work effectively defended the motion of Earth despite its formal dialogue structure and claims of discussing the issue hypothetically.

After Galileo's 1633 trial, the Inquisition banned the Dialogue and prohibited its further publication. The work was subsequently placed on the Index Librorum Prohibitorum, the Roman Catholic Church's catalog of books judged harmful to faith or morals. The Index was not simply a list devoted to astronomy; it covered theological, philosophical, political, and literary works.

A common misconception is that Galileo was imprisoned in a dungeon for life. His formal sentence of imprisonment was quickly commuted to house arrest, which lasted until his death. The Dialogue, however, faced a separate publishing ban, and Galileo was forbidden to write on cosmological questions in the same way.