Seven of twelve EU countries sign the Schengen Agreement, which envisioned the abolishment of frontier barriers allowing unhindered and unchecked traffic.
At the East-West summit in Geneva Mikhail Gorbachev and Reagan negotiate the reduction of their nuclear warheads to 50%.
German scientists launch the new SPACELAB on board the Challenger shuttle into space.
Fiber optic cables are manufactured allowing the simultaneous transmission of 250.000 phone calls.