The basics for time travel start at CERN in about a year and end in 2034 with the first "time machine" built by GE. Too bad we can't post pictures or I'd show it to you.
I realize that time travel is not invented in my lifetime, if it had been I would have traveled back to tell myself to get out of tech stocks in 1999 :-)
To still be in this timeline, we need to retcon Titor's 2015 nuclear war.