Chinese character

Japan's standard character set JIS X 0208 holds 6,355 kanji. A dozen — like '妛' and '彁' — have no traceable source and are considered mistakes. They display fine on most computers, yet these 'ghost characters' never really existed.

The Chinese character '羊,' read as 'yang' (meaning "sheep"), likely depicts a goat instead. When it was created, goats were far more common in East Asia. The "Year of the Sheep" in the Chinese zodiac was originally closer to the Year of the Goat.