1903 - Konstantin Tsiolkovsky begins a series of papers discussing the use of rocketry to reach outer space, space suits, and colonization of the solar system. Two key points discussed in his works are liquid fuels and staging.
1952 - Wernher von Braun discusses the technical details of a manned exploration of Mars in The Mars Project.
1953 - Colliers Magazine publishes a series of articles on man's future in space, igniting the interest of people around the world. The series includes numerous articles by Ley and von Braun, illustrated by Chesley Bonestell.
1962 - The US launches Mercury MA-6 (Friendship 7) on an Atlas D booster, John Glenn finally puts America in orbit.
1963 - The USSR launches Vostok 6, Valentina Tereshkova was the first woman (and first civilian) to orbit earth. She remained in space for nearly three days and orbited the earth 48 times.
