Star Trek: Discovery series will take place before the original the original series according to Ain’t It Cool News. The evidence was apparently on the teaser for the ship “Discovery” the entire time.
ShowrunnerBryan Fuller elaborates:
“There’s a big clue in the number of the ship [NCC-1031] that indicates when we’re set,”
The registry number of the original Enterprise series was NCC-1701, so it’s safe to say this takes place quite a bit before Kirk and Spock hit the skies.
Fuller says he’s going to be releasing more spoilers for the series on August 10th.