On This Day January 31
1970 – “I Want You Back” becomes the first No. 1 single for The Jackson 5 and makes Michael Jackson, at age 11, the youngest musician with a chart-topping hit. The song was originally written for Gladys Knight & The Pips.
1950 – President Harry S. Truman announces plans to develop the hydrogen bomb. Two-and-a-half years later, the U.S. tests its first H-bomb at Eniwetok Atoll in the South Pacific. It generates a blast a thousand times stronger than the two atomic bombs dropped on Japan in World War II.
1990 – Los Angeles prosecutors announce that they will retry teacher Raymond Buckey, who was accused of molesting children at the McMartin Preschool in Manhattan Beach, California. The McMartin trials had already taken six years and cost more than $13.5 million without a single guilty verdict.
1981 – Grammy-winning singer-songwriter and actor Justin Timberlake, who was a member of the boy band NSYNC before embarking on a solo career (“Cry Me a River,” “Rock Your Body,” “SexyBack,” “My Love,” “What Goes Around… Comes Around”)