- Apollo 10 transmit 1st color pictures of Earth from space
- In an interview with the 'Belfast Telegraph' former Northern Ireland Prime Minister Terence O'Neill states: "if you give Roman Catholics a good job and a good house, they will live like Protestants, ... They will refuse to have 18 children"
- Turtles play White House, Mark Volman falls off stage 5 times
- US troops begin attack on Hill 937 ("Hamburger Hill"), Vietnam
Day of the Week: Saturday