Answer:
Two days after sealing off free passage between East and West Berlin with barbed wire, East German authorities begin building a wall—the Berlin Wall—to permanently close off access to the West.
Hernan Cortes aided the Aztec
Answer: April 8, 563 BC, Lumbini, Nepal
Explanation: hope helps
Both country build up new technology to compete against each other in the race to space thus creating longer range missle.