What does A.d: 2688 A.D:2688 mean?

A.d: 2688 A.D:2688 meaning in Urban Dictionary

a tale about 6 fugitives in the future just who fight Xenoware. the fugitives are: Jeremy Gnoels, some 17 year old that's material from neck down Regulus 17, an android which employs around this various other character, Richard who's some sluggish forty five year-old scientist with 6 metal spider feet via their back, Narox, twenty-something alien within the military, Epperan, the blind kid, and Laura, the chick that is an assassin. featured on geocities.com/silversony65u000du000au000du000aA wierd tale showcased on Geocities.com/silversony65/