Answer the question depending on the context.
Context: The approaching era of jet travel, and a series of midair collisions (most notable was the 1956 Grand Canyon mid-air collision), prompted passage of the Federal Aviation Act of 1958. This legislation gave the CAA's functions to a new independent body, the Federal Aviation Agency. The act transferred air safety regulation from the CAB to the new FAA, and also gave the FAA sole responsibility for a common civil-military system of air navigation and air traffic control. The FAA's first administrator, Elwood R. Quesada, was a former Air Force general and adviser to President Eisenhower.;
Question: When did the Grand-Canyon mid-air collision happen?;
Answer:
1956
From the context we can see that FAA was formed in 1958 as a result of series of midair collisions(most notable being 1956 Grand Canyon mid-air collision)..