what to call the decade of the oughts ?

Bet they had this same problem back in 1900, and maybe even in 1800
like the problem with how to say alot when texting and tweeting, exactly the same as problem with morse code and telegraph (telegraph worse, u paid by the word)
probably, you go back to cunieform clay tablets in mesopatamia, tablets are heavy, they had all sorts of tweet like tricks to compress messages