April 4
The 94th day of the year. (9+4=13) 1944 – World War II: First bombardment of oil refineries in Bucharest by Anglo-American forces kills 3000 civilians 1967 – Martin Luther King, Jr. delivers his “Beyond Vietnam: A Time to Break Silence” speech in New York City‘s Riverside Church. 1968 – Apollo program: NASA launches Apollo 6. 1969 – Dr. Denton Cooley implants the first temporary artificial heart. 1973 – The World Trade Center in New York is officially …