It is seven in the roman Catholic Church, not sure about the rest but they're probably the same as all the christian religions originated in the Catholic one.
The age of Enlightenment is another name for age of reason.
Isn't it?
The Age of Reason was created in 1794.
the traditional age given as the "age of reason" is 7
The Sacrament of Confirmation.
The Age of Reason
To speed Christianity
because of a historical reason
Dark Age of Reason was created in 1996.
The Age of Reason - Sartre - was created in 1945.
The religion itself does not have a specific age.
The Age of Discovery saw an increase in ocean travel, which allowed churches to send representatives to distant lands to spread Christianity.