No one really knows when many of our expressions be-came popular. But other can be easily dated.
One such expression is A-OKAY .it mean the situation is fine; there is no cause for warry.
A-OKAY is a space -age expression.it was used in 1961 during the flight o f an American astronaut.
John Powers, a spokesman for NASA ,the national space agency,use a-okay to tell the world that everything on the space flight was operating perfectly.
