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What does ATL stand for?

ATL stands for Alternate Timeline

This definition appears somewhat frequently and is found in the following Acronym Finder categories:

  • Organizations, NGOs, schools, universities, etc.

See other definitions of ATL

Other Resources:
We have 226 other meanings of ATL in our Acronym Attic

Samples in periodicals archive:

According to the British comic book news site Bleeding Cool News, the episode centers on an alternate timeline of some sort, as Vieira reads the line, "Crowds lined the Mall today as the Roman Emperor Winston Churchill returned to Buckingham Senate on his personal mammoth.
This kind of fan fiction receives the general name of alternate universes or AUs, sometimes reusing the terms alternate timeline, Elseworld, or "What if.
JSA In the first of Turtledove's books that seems aimed at a YA audience, two 21st-century teenage siblings end up stranded in an alternate timeline where the Roman Empire never fell.