Who was behind the sputnik 1?

Sputnik 1 was launched by the Soviet Union on October 4, 1957, marking the first artificial satellite to orbit the Earth. The project was led by a team of engineers and scientists, notably including Sergei Korolev, who is often regarded as the chief architect of the Soviet space program. The successful launch of Sputnik 1 initiated the space race between the United States and the Soviet Union during the Cold War.