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A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership. They can either be tagged as POTD or displayed in a special page on that site...

Asian people or Asiatic people is a demonym for people from Asia. However, the use of the term varies by country and person, often referring to people from a particular region or subregion of Asia. Though usage may be based on residence, it is usually considered an ethnicity or race...

Cave diving is a type of technical diving in which specialized SCUBA equipment is used to enable the exploration of natural or artificial caves which are at least partially filled with water. In the UK it is an extension of the more common sport of caving, and in the US an extension of the more common sport of SCUBA diving. It is much more rarely practiced due to the skills and equipment required, and because of the high potential risks...