tv/ movies: The Hollywood walk of fame star was awarded to ernest tubb for _____?

Questions

In 1947 (USA) ---------- invented by Bardeen, Brattain and Shockley in Bell Labs. ?

In 1948 PM Tojo, 6 other Japanese hung for ---------- crimes by US. ?

In 1968 Borman, ---------- and Anders first men to orbit moon. ?

In 1972 Earthquake destroys central Managua,---------- . ?

In 1973 Six ---------- Gulf nations double their oil prices. ?