So, The Flash Has Finally Ended *Sobs* I-I'm Not Crying (Oh Who Am I Kidding *Cries*)

But As We Look Back on All the Friends That the Flash-Or Barry Allen Made We're Reminded That Nothing Lasts Forever 

So, Without Further Ado Let's Do This...One Last Time

So Now That the Arrowverse Has Officially Ended We're Looking Back to Every Hero That Arrow and The Flash Inspired 

Arrow-He Introduced the Atom to The Team

Yep, You Heard Me Right Readers Before Ray Plamer-The Atom Was in Dc's Legends of Tomorrow He Was In The Tv Show Arrow

He Was First Introduced  In Arrow In The Episode "The Calm"