When did Gagaring completed an orbit of the Earth?
| Options: |
| A) April 12, 1961 B) April 12, 1960 C) April 12, 1951 D) April 12, 1971 |
| Answer : April 12, 1961 |
| Options: |
| A) April 12, 1961 B) April 12, 1960 C) April 12, 1951 D) April 12, 1971 |
| Answer : April 12, 1961 |