a) April 12, 1961
b) April 13, 1961
c) April 12, 1969
d) April 12, 1960
The world’s first-ever human space flight was launched on April 12, 1961. The International Day of Human Space Flight is observed to commemorate the day every year.
a) April 12, 1961
b) April 13, 1961
c) April 12, 1969
d) April 12, 1960