Plane

For a more technical description, see the Wikipedia Article

Defining a plane in simple terms is hard, for simple understandings, a plane contains multiple blocks in which are groups to classify them, they are used so all the Unicode characters and blocks aren't in one group in which is too big for classification. The table was listed in the Unicode page and will be listed here again, since this is the Unipedia, all planes will be explained in the Wiki, being the reasoning this is a small page, a synopsis will be given however on this page.

Basic Multilingual Plane
Main Article: Basic Multilingual Plane

The basic multilingual plane, abbreviated BMP, numerical plane id. 0 is the first plane, it contains characters for most (modern) languages, most of them are filled with Chinese characters, due to their being so many needed to encode. It is the only basic plane.

Supplementary Multilingual Plane
The supplementary multilingual plane (SMP Plane id = 1) contains characters for ancient, obsolete or historic (not including Chinese) languages/scripts, it also includes other symbols and notational symbols.

Supplementary Ideographic Plane
The supplementary ideographic plane (SIP, 2) contains Chinese character extensions that either weren't listed before for space reasons, other reasons or because they contain rare Han.

Tertiary Ideographic Plane
The tertiary ideographic plane (TIP, 3) contains only one block, CJK Unified Ideographs Extension G, due to spacing reasons, it contains more Chinese characters that were either rare, not used most or are existing their for other reasons like the (in)famous (being infamous due to their stroke count) Taito and Biang.

Unassigned Plane
The plane with no real name, however it's actual name is just Unassigned however I call it the unassigned plane(s), abbreviated UP, id no(es). 4 through 13. They are added their just in case more blocks and planes are added so they wont have to mess up/break the Unicode consortium

Supplement­ary Special-purpose Plane
The supplementary special-purpose plane (SSPP, 14) Contains supplemental blocks used for variation, changing, creating other existing characters, it only contains Tags and Variation Selector Supplement blocks however.

Private Use Area planes
The private use area planes (PUA-A/PUA-B, 14/15) Contains both Supplementary Private Use Area-A and Supplementary Private Use Area-B, unlike the regular Private use areas, the supplementary private use areas are used by parties outside the ISO and the Unicode Consortium.