-1947: Mikhail Tikhonravov proposes a theory of multi-stage rockets per OTL, this time Soviet leadership listens to him and they build a test-rocket using six V2 engines for a lower stage and a single one for an upper stage.
-1948: Korolev refines designs for improved derivatives of V2 rockets and combines aspects of the six-engine cluster into the proposed "R-3" design.
-1950: Test flight of an R-3 missile system is a success in static testing, mathematic projections permit a V2 stage to be placed atop this system and accomplish a satellite launch. Recalculated projections permit a ten-engine R-2 first launch followed up with a single-stage R-2 launch with payload atop it
-December 3, 1950: Barely 72 hours after Douglas MacArthur threatens to use nuclear weapons in the Korean War the Soviet Union places the world's first artificial satellite into orbit. Its radio broadcast of the Soviet national anthem is picked up around the world on shortwave radio and will continue to be picked up for another three weeks
-December 4, 1950: President Truman convenes and emergency meeting as Stalin hails the engineers who made the achievement possible. The R-3 is to be refined and made more precise in its targeting for possible use as a nuclear weapons platform. Truman decides that rocketry is to be made a national priority and that the US must be able to close the "missile gap" as soon as possible. Redstone, a rocket program already under development, is given top priority and a greatly increased budget even as the Korean War rages.
-June 1951: Soviet Cosmo-dog "Mir" becomes the first living inhabitant of Earth to go to space and return safely. The first three animals launched are not mentioned, nor are their deadly fates.
-January 1952: While Russian engineers prepare for a manned flight, the Americans deploy their first multi-stage rocket successfully, this time not only launching a large satellite into a higher orbit but also retrieving a dog in the process after the animal is shot into an altitude of over 150 miles. On return the animal lands unharmed.
-April 1952: Soviet prototype testing of the "R-4" missile system is completed with a range much greater than previously expected, this permits the final checks on the "Strakov" module system
-July 1952: American Charles Yeager is launched into orbit aboard the "Mercury" vehicle ten days ahead of the expected Soviet launch. His two-orbit flyover of the planet is only somewhat marred when radio and early TV crews note he is muttering something to himself just before launch, censors are unable to catch the expletive wording in time. Yeager is found about 100 miles from his expected landing point, his otherwise near-perfect landing just over 215 miles east of Cape Canaveral becomes a worldwide media event