The event represented by the launch of the first human-made satellite, Sputnik, in 1957, marked the beginning of the Space Age. Launched by the Soviet Union on October 4, 1957, Sputnik's successful orbit around Earth demonstrated significant advancements in rocket technology and shocked the world, especially the United States, leading to the Space Race. This event not only showcased the capabilities of satellite technology but also initiated a new era of scientific and military competition.