Final answer:
The SALT talks were not an event in the early Cold War. They were indicative of the period of détente and took place later than the other events listed. Option d is the answer.
Step-by-step explanation:
The event that was NOT an event in the early Cold War is D. SALT talks. The Cuban Missile Crisis, Berlin Blockade, and Korean War all occurred during the early phases of the Cold War. However, the Strategic Arms Limitation Talks (SALT) occurred later, specifically starting in 1969, and culminated in agreements signed in the 1970s, reflecting a thawing period of the Cold War rather than its early stages.
The Cuban Missile Crisis in 1962 was a pivotal point in the Cold War, bringing the world to the brink of nuclear war. The Berlin Blockade of 1948-1949 was the first major confrontation in post-World War II Europe, leading to the Berlin Airlift. The Korean War from 1950 to 1953 was another significant conflict during the Cold War, involving a proxy war between the powers on the Korean peninsula.