When was Chex Mix created?

Chester Manwell was born in 1932 in Albany, New york. He did not have many friends growing up. He went to Spartan Highschool where everyone was very interested in the Bowling team. Chester Manwell originated his nickname, Chex Mix, from a bully who would "mix" his face in the toilet with a "Swirley" and yell, "Chex Mix Time!"