Today is a day to hang our heads in shame.
This is the day Luthor first created a Bizarro version of Superman (after Professor Dalton created the first Bizarro, a version of Superboy, in Superboy #68 of October, 1958 by Otto Binder and George Papp) with an imperfect duplicator ray.
First Bizarro - Action Comics #254 (July, 1959)
First Bizarro Lois Lane - Action Comics #255 (August, 1959)
First Bizarro World - Action Comics #263 (April, 1960)
First Bizarro Jr. - Superman #140 (October, 1960)
First Bizarro series - Adventure Comics #285 (June, 1961)
Bizarros vex the Legion - Adventure Comics #329 (February, 1965)
Bizarro thinks Bizarro World destroyed, has powers slightly changed, getting ice vision and flame breath
Superman #305 and #306 (November and December, 1976)