Board Thread:Supergirl discussions/@comment-9346948-20170523001131/@comment-31125534-20170524072155

The Legion of Super-Heroes, a super-team of -usually- teenagers that formed a super-hero team in the 31st century inspired by the deeds of Superboy and Supergirl 10 centuries before. It's noteworthy for several things: it's the second super-hero team in the comics' History and possibly the first super-team co-led by a woman (Saturn Girl). Superboy/Superman and Supergirl are often members. Brainiac 5 -one of his members- is one of the main Supergirl's love interests. Mon-El is also a member. The team leaders are Saturn Girl -a telepath-, Cosmic Boy -a boy able to manipulate magnetic forces- and Lightning Lad -who commands lightning-.

There're several Legion references in the show: a Legion Flight Ring in the fortress of Solitude,the  planets Takron-Galtos and Rimbor...

The series has gone through several incarnations and reboots due to DC's decision to reboot Superman and their universe back in 1985, but that's the gist of it.

More information here: http://dc.wikia.com/wiki/Legion_of_Super-Heroes

Recommended reading material here: http://dc.wikia.com/wiki/Legion_of_Super-Heroes_Recommended_Reading