| Date | Event |
|---|---|
| April 01 1959 | Iakovos Enthroned As New US Greek Archbishop |
| April 08 1959 | Grace Hopper Leads Creation Of COBOL |
| April 08 1959 | O.A.S. Creates The Inter-American Development Bank |
| April 09 1959 | NASA Announces 'Mercury Seven' Astronauts |
| April 10 1959 | Future Japanese Emperor Marries |
| April 25 1959 | St. Lawrence Seaway Officially Opens |