Salvatore (Sam) Costanzo (born 1968)

In 1968, in the year that Salvatore (Sam) Costanzo was born, on January 31st, the North Vietnamese launched the Tet Offensive, a turning point in the Vietnam War. 70,000 North Vietnamese and Viet Cong forces swarmed into South Vietnam. The South Vietnamese and US troops held off the offensive but it was such fierce fighting that the U.S. public began to turn against the war.

In 1978, on July 25th, Louise Brown, the first "test-tube baby", was born at Oldham Hospital in London. Louise was conceived through IVF (in vitro fertilization), a controversial and experimental procedure at the time.

In 1980, on December 8th, ex-Beatle John Lennon was shot and killed by Mark David Chapman in front of his home - the Dakota - in New York City. Chapman was found guilty of murder and still remains in jail.

In 1994, on May 6th, the Channel Tunnel or "Chunnel" was officially opened. The Chunnel is a railway tunnel beneath the English Channel that connects Great Britain to mainland France. Original plans for such a tunnel were developed in 1802 and approved by Napoleon Bonaparte but the British rejected the plan fearing that Napoleon would use the railway to invade.

In 1999, on January 1st, the Euro became the new official single currency of the eurozone. It was used by Austria, Belgium, Cyprus, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Portugal, Slovakia, Slovenia, and Spain and has since spread in use. Daily, over 337 million Europeans use the euro.