The term "mid-'60s" refers to the middle period of the 1960s, specifically from around 1964 to 1966. It is a shorthand way of referring to events and cultural shifts that occurred during this time.
Related terms
Civil Rights Movement: A social and political movement in the United States during the mid-20th century aimed at ending racial segregation and discrimination against African Americans.
Counterculture: A cultural movement that emerged in the mid-'60s, characterized by non-traditional values, rejection of mainstream society, and embrace of alternative lifestyles.
Vietnam War: A conflict that took place from 1955 to 1975 between North Vietnam (supported by communist allies) and South Vietnam (supported by anti-communist allies), with significant involvement from the United States.