Which of the following things were invented or first occurred in the 1950s? first heart transplant chicken pox vaccine microwave ovens first personal computer use of bar codes creation of the laser

The picture below shows president richard nixon and the first lady standing before the great wall of china in 1972. they are smiling - as are the chinese with them. when this picture was shown on american television, americans were aware that it was a historic moment. what are two reasons why this moment was important for both china and the united states?