When was Chengtianmen renamed Tiananmen Square?

165 1 year, Aisingiorro Fu Lin, the ancestor of the Qing Dynasty, ordered a large-scale reconstruction on the original site of Chengtianmen, rebuilt the tower according to the original appearance of Chengtianmen in the Ming Dynasty, and renamed Chengtianmen as Tiananmen Square, but the wooden plaque hanging on Tiananmen Square was called "Tianan Gate", which means "following the orders of heaven and prospering the country and governing the country".

In this way, "Tiananmen Square" not only covers the naming intention of "inheriting heaven and starting luck", but also incorporates the idea of "governing the country in peace and prosperity, making the country prosperous and the people safe".