Does anyone know a reason why we should have timeline-cheapass-games instead of changing it to timeline? I see one question and it already has a wiki but not sure why the publisher should be in that tag.
There's another game called Timeline that's more widely known (nearly 1000 reviews on BoardGameGeek, sold at mass-market stores) that's not by Cheapass Games.
I can't find a BoardGameGeek page for the Cheapass Games one, and it's not easily searchable as "timeline card game" so it seems reasonable for the OP to have wanted to disambiguate.
That said, we don't seem to have any questions about the more popular one, so... not sure it matters an awful lot.