The notable event in 1961 that represented a significant point in the space race between the USA and USSR was the launch of Vostok 1, carrying Yuri Gagarin. This mission marked the first human spaceflight, with Gagarin orbiting Earth and completing a single revolution. The successful launch showcased Soviet space technology and heightened tensions in the Cold War as the United States recognized the need to accelerate its own space program. In response, the U.S. increased investments in NASA and eventually aimed for the moon, culminating in the Apollo 11 mission.