Age of Ascension
The Age of Ascension was a rite of passage in several cultures. It generally signified one's entrance into adulthood.

Klingon 
The Klingon Age of Ascension was the time when a Klingon child officially became a warrior.

The first Rite of Ascension had to be taken by the age of 13 in order for a Klingon youth to declare his intentions to become a warrior. ()

The final initiation ceremony involved the use of painstiks, as the celebrant walks along a line of warriors, intoning: "DaHjaj SuvwI'e' jIH. tIqwIj Sa'angnIS.'Iw bIQtIqDaq jIjaH." ("Today I am a warrior. I must show you my heart. I travel the River of Blood.")

The anniversary of the event was a day of ritual and celebration. On the tenth anniversary of Worf's Rite of Ascension (he apparently did it when he was 15) his crewmates aboard the  recreated the ceremony on the holodeck. ()

When Worf's brother Kurn reached the Age of Ascension, his adopted father Lorgh told him of his true parentage. ()

Ferengi 
The Ferengi Age of Ascension was the time when a male Ferengi was expected to leave his family and make profit on his own. In 2351, Quark left home immediately following his age of ascension. ()

de:Alter des Aufsteigens
fr:Age de l'Ascension
Ceremonies
Events
Klingon ceremonies
Ferenginar