Episodic event and semantic memory

A distinction introduced by Endel Tulving, both are classes of declarative memory.  Episodic memory refers to a type of long-term memory for personal events or experiences that is stored as information to provide a sense of personal continuity and familiarity with the past.  It can be distinguished from semantic memory (a type of long-term memory for factual information about the world, excluding personal episodes in one’s life, such as the dates of the Second World War), and from procedural memory (a storage system for information about how to carry out sequences of operations for knowing how to do things in contrast to knowing that, which refers to semantic memory). 

See Autobiographical memory, Declarative (or explicit) and procedural memory, Explicit (or declarative) and implicit (or non-declarative) memory, Memory, Perceptual development Short-term memory (STM) and long-term memory (LTM)