Today marks the 20th anniversary of Johnny Carson‘s last Tonight show and the 40th anniversary of Richard Nixon’s arrival in the Soviet Union. What it is not—despite Elio Chacon, Richie Ashburn and Frank Thomas all being in the Mets’ starting lineup for the first time in nearly a month—is the day on which the fabled yo la tengo incident occurred. The Mets lost 3-2 to the Houston Colt .45’s (Jetsons-mania would inspire the name change to the Astros in 1965).