In three separate eras, the 20th century, the 30th century and the 38th century... a trio of time travelers sought out adventures that led them each towards meetings with the Justice League.
- For Rip Hunter of the 20th century, it was when he joined the Forgotten Heroes to aid Earth-One's Superman, before aiding the Man of Steel and his fellow Leaguers during the Crisis on Infinite Earths.
- For Brainiac Five of the 30th Century, it was when he met a younger version of the same hero in Superboy, who joined the lad's Legion of Super-Heroes.
- And for the Lord of Time from the 38th century, it was when this temporal tyrant attempted to conquer the League's era repeatedly.
- The Lord had a daughter, named Olanda, cloned from his own body as well as her six brothers who were vanished by the Leaguer Steel.
On the parallel plane of Earth-Two, one chronological criminal used four versions of himself as well as his handful of personal temporal troopers to terrorized his native time and other ages.
- The first version of Per Degaton had journeyed to the time of Alexander the Great in the 4th century B.C. in order to change history in the 20th century. This brought him to the attention of the Justice Society, who after a decade of rule defeated Degaton
- The next version of Per Degaton had a short-lived career before the Society and the All-Star Squadron combined to defeat him in 1941, erasing this version.
- The third version of Per Degaton succeeded in changing his native decade by journeying to a parallel Earth and future time. After four decades of rule, the Society, All-Stars and League combined forced to dethrone him.
- Finally, the core version of Per Degaton lost his opportunity to steal Professor Zee's time machine, as his other clones had done, and instead became a member of the Injustice Society... still beaten by the Justice Society on three occasions.
A member of the Brainiac Five's Legion, Triplicate Girl, had the ability to create clones of herself. These young heroes had in times past traveled through the centuries to Superboy's era for various adventures, and thus were no strangers to the machinations of the time stream.
These three girls correlated with the three time traveling clones of Degaton, much like Little Miss Redhead's three allies the Blue Boys including Little Boy Blue and his pals Tubby and Toughy. This young team of teen titans were members of the Squadron who continued to perplex Degaton time and again. These three distinct lads correlated with the three distinct dudes of Hunter, Five and the Lord... in the cosmic balance of the cosmos, that is, with the fourth Per being a variation on Olanda.