Important Events in World History on December 7
1787: Delaware ratified US Constitution Delaware ratified the US constitution. It was the first State to do so. Thus it became the first state to join in the modern United States. There were 30 members in the Delaware Constitutional Convention which ratified the Constitution. 1941: Pearl Harbor attacked Japanese bomber planes attacked Pearl Harbor, a US Naval base situated on the Oahu island, Hawaii. This surprise attack caused the US entry into World War II. About 2403 Americans were killed in the attack. December 7 was later designated as Pearl Harbor Remembrance Day in August 1994. 1972: Appolo's last crew Eugene Andrew Cernan steered the last crew ship to the Moon. This was the end of the Appolo mission. 1982: Lethal Injection On this day in that year, the first execution by injecting lethal chemicals took place in the world. The incident took place in Huntsville, Texas. Charles Brooks, Jr. was the convict. The offense was murder. Sodium Pentath...