One type of Long Term Memory is procedural memory. An example of when this is used is when riding a bike for example as an individual is remembering a muscle-based memory. Procedural memories are often recalled unconsciously. Another type of LTM is episodic memory which are memories surrounding events at a specific point in time. An example of this would be remembering one's wedding day. This can happen voluntarily or as an automatic response to external cues. A Third type of LTM is semantic memories which are factual memories about the world around you. An example of this would be knowing that football is a sport.