Age of Titles

Common title convention. Somewhere in the title will be the words "age of (insert age here)". "The" is optional.

Why is this the case? it sounds cool. There is something intricately cool about the word "age" when applied to a concept other than "How old are you?" It's mysterious, giving things an overarching, supporting theme yet never revealing too much about the work itself. The "age" can tell audiences what sort of things they expect; audiences won't expect hypersonic radiological electromagnetic time travel in a work titled "Age of Pirates", yet "Age of Pirates" never tells audiences anything about the plot or characters. This is the perfect combination to get the everyone's imaginations starting. A title is the first thing someone will see for any work. Make the title count.

A subtrope of The X of Y.

Comic Books

 * The Ages of Super Hero Comics
 * The Golden Age of Comic Books
 * The Silver Age of Comic Books
 * The Bronze Age of Comic Books
 * The Dark Age of Comic Books
 * The Modern Age of Comic Books

Literature

 * The Age of Innocence by Edith Warton.
 * The Age of Reason: Being an Investigation of True and Fabulous Theology by Thomas Paine.
 * The Age of American Unreason, by Susan Jacoby.
 * The books of James Lovegroves Pantheon series: The Age of Ra, The Age of Odin,' The Age of Zeus and The Age of Aztec.''

Live Action TV

 * The Golden Age of Ballooning

Music

 * Iron Maiden's "Age Of Innocence"
 * Turbonegro's The Age Of Pamparius
 * Blind Guardian - "Age of False Innocence"

Theatre

 * Hair (theatre): "This is the dawning of the Age of Aquarius..."

Video Games

 * Dark Age of Camelot
 * Age of Empires
 * Age of Empires II: The Age Of Kings
 * Age of Mythology
 * Warhammer: Age of Reckoning
 * Age of Conan
 * Fall From Heaven Age of Ice
 * The Age of Decadence
 * Age of Wonders
 * Remember 11: The Age of Infinity

Web Original

 * Age of Autism

Real Life

 * Commonly used to describe time periods to emphasize certain elements of the time period. (Age of Sail, Age of discovery, etc.)
 * To wit: Age of Austerity.

Other

 * The Age of Facebook