Before the 747, the four-engine McDonnell Douglas DC-8 Super 61 was the largest airliner in the world.
Why "super?" Because it was 36 feet, 8-inches longer than the first version of the DC-8, increasing the typical capacity to 180-200 passengers from about 155.
This made the plane perfect for high-passenger domestic routes. Shown here in a file photo, the actual DC-8 Super 61 at Paris in 1967 wore the blue and white paint scheme of Eastern Airlines.