The Acid Tests Testing were a series of parties Social_event held Hold by author Ken Kesey primarily in the San Francisco Bay Area during the mid-1960s , centered entirely on the use Using of , and advocacy of , the psychedelic drug LSD , also known as `` acid '' .

The white South has voted Change_of_leadership Republican at the presidential level since the mid-1960s and at the state Statement and local level since the 1990s .

Despite several military actions and peace conferences Communication , the war Hostile_encounter sank Causation into a stalemate by the mid-1960s .