. . . the first flight of the Boeing 747, the famous "Jumbo Jet", took place, on February 9th, 1969. Here's Boeing's official video of proceedings. The actual takeoff is shown from about 14m. 30s. onwards.
Congratulations to Boeing on a landmark in aviation history. As of December 2018, over 1,500 747's had been built, and the type is still in low-rate limited production, primarily in freighter configuration. It's proved to be one of the most successful aircraft programs of all time, particularly in terms of the number of people carried - including the largest number ever carried on a single flight by a passenger aircraft, during Operation Solomon:
An astounding record was set on 24 May 1991 when 1086 Ethiopian Jews were evacuated to Israel in one plane. This was more than double the normal capacity of a passenger jumbo jet, and not surprisingly, never before had so many people flown in a commercial airliner. Two babies were born en route bringing the total who landed in Israel to 1088. The flight was just one of 40 which were put on to evacuate a total of 14,200 Jews to their promised land from Addis Ababa, the besieged capital of Ethiopia, all in the space of 24 hours.
The seats had been removed, of course, to make more room, but even so - talk about a crowded flight!