Thread:Lucien61/@comment-24845073-20140727202116/@comment-24845073-20140729003807

I'm pleading ignorance on this one; I take it most Legion stories couldn't fit into the New Earth continuity because Superboy was so instrumental in their history well into the early 80's. John Byrne eliminated Superboy (something he apparently regretted later).

In contrast many JSA stories continued to be canon because the Earth-Two Superman, Batman, and Wonder Woman weren't really that frequent since they all three had their ongoing titles.