Does "Grandfathered" Trace to Slavery?

Also, does Russian have regional accents, like English or Italian?

Despite some grandfatherly advice from President Johnson, little Patrick Lyndon Nugent can’t seem to figure out which end of the contraption is for talking into.

First off, Thomas Simpson has two Russian friends who tell him that there are

… no real accents in Russia, and that they would not be able to tell just by someone speaking if they were from Moscow, Vladivostok, or anywhere in between.

Thomas wants to know

… if it was a Soviet education initiative or something else, and how long it would take for regional accents to start appearing again. Are there any other languages with a surprising lack of regional variants?