U+03D1 GREEK THETA SYMBOL

The Unicode character U+03D1, officially named GREEK THETA SYMBOL, was introduced in Unicode version 1.1. It is part of the Greek block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as GREEK SMALL LETTER SCRIPT THETA.

Categorized technically as a Lowercase Letter, this character typically falls under the Greek script. In terms of text layout and rendering, the glyph is a compatibility composition and has no designated width in East Asian typography. When placed in bidirectional text, it behaves as an Left-To-Right character. Its visual representation remains not mirrored regardless of the reading direction.