|Earth Pre-Federation Database - Bonaventure|
|Date is conjecture from Cochrane's career as desribed in TOS "Metamorphosis", further assuming that early warp drive had to
be invented before S.S. Valiant embarked on its expedition, circa 2065, since that ship clearly crossed significant instellar distances.
Star Trek: Chronology
seen in DS9 "Cardassians" and can be seen in Keiko's school in DS9 "The Nagus" ; DS9 DVD Box