| |
| 1955, Sept. 20 |
| |
| East German–Soviet agreements were signed conferring sovereignty on East Germany as well as control over civilian traffic between Berlin and West Germany. | 1 |
| |
| 1956, July 17 |
| |
| Premier Otto Grotewohl and Soviet Premier N. A. Bulganin, meeting in Moscow, declared that German unification must proceed via East-West German negotiations. | 2 |
| |
| 1957, Nov. 14 |
| |
| East and West Germany reached an agreement to trade $260 million in goods in 1958. | 3 |
| |
| 1959, Nov. 24 |
| |
| East and West Germany agreed on $548 million in trade for 1960. | 4 |
| |
| 1960, Sept. 8 |
| |
| East Germany announced that travel by West Germans to East Berlin was under permanent restriction; West Germans would thenceforth have to obtain a Communist police pass before entering East Berlin. The Allied powers declared that this was the most serious infringement to date of the four-power agreement on Berlin. | 5 |
| |
| Sept. 30 |
| |
| The West German cabinet decided to break off trade relations with East Germany after Jan. 1, 1961, if East Germany did not lift its travel restrictions, but later (Nov. 25) announced that it would reopen trade talks despite the restrictions, and finally (Dec. 29) agreed to extend the trade pact. | 6 |
| |
| |
