The major world event that took place on July 20, 1969, was the Apollo 11 moon landing, marking a significant achievement in space exploration and human history. Astronauts Neil Armstrong and Edwin "Buzz" Aldrin became the first and second humans to set foot on the lunar surface, while Michael Collins remained in orbit aboard the command module. Armstrong’s iconic words, "That's one small step for man, one giant leap for mankind," underscored the monumental accomplishment. This event showcased the technological capabilities of the United States during the space race with the Soviet Union and inspired generations to pursue science, technology, engineering, and mathematics careers.