In 1969 only one state out of 52 not considered homosexual contact illegal in which state was it legal?

Illinois

Explanation:

In 1962, consensual sexual relations between same-sex couples was decriminalized in Illinois, the first time that a state legislature took such an action. Over the next several decades, such relations were gradually decriminalized on a state-by-state basis. Connecticut was the next state to decriminalize homosexuality.[50] Colorado,[51] Oregon,[52] Delaware[53] all had decriminalized homosexuality by 1973. Ohio,[54] Massachusetts,[55] North Dakota,[56] New Mexico,[57] New Hampshire,[58] California,[59] West Virginia,[60] Iowa,[61] Maine,[62] Indiana,[63] South Dakota,[64] Wyoming,[65] Nebraska,[66] Washington,[67] New York[68] all decriminalized homosexuality in the 1970s.