Superman Day is held on June 12. Superman was first created in 1933 by Joe Shuster and Jerry Siegel, the writer and artist respectively. This event in the second decade of the month june is annual.
Ball Point Pen Day on June 10 (In June of 1943 the Bíró brothers, László and György, became owners of US Patent 2,390,636 – better known around the world as the ball point pen);
Loving Day on June 12 (is the biggest multiracial celebration in the United States. This is anniversary of the 1967 United States Supreme Court decision Loving v. Virginia which struck down all anti-miscegenation laws remaining in sixteen U.S. states.");