Japan Kanji Day
Japan Kanji Day is held on December 12. Kanji are Chinese characters used in modern Japanese writing along with hiragana, katakana, Arabic numerals, and romaji. On this day, the kanji of the year is chosen and announced at a special ceremony. It is selected by the Japan Kanji Professionals Society through the national ballot. This event in the second decade of the month December is annual. 
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Kanji originated from Chinese in the 5th century. Kanji is one of three parts of the Japanese alphabet. The modern Japanese language uses Hiragana and Kanji. Some Kanji represent more than one sound.
In Japanese, there are no spaces between words, so kanji helps break words apart, making it easy to read. As I'm sure you can imagine, long sentences would get even more difficult to read, and when you don't know where one word begins and another one ends, reading errors can occur.
Kanji are used for writing nouns, adjectives, adverbs and verbs. But unlike the Chinese language, Japanese cannot be written entirely in kanji. For grammatical endings and words without corresponding kanji, two additional, syllable-based scripts are being used, hiragana and katakana, each consisting of 46 syllables.
Similar holidays and events, festivals and interesting facts
Bodhi Day in Japan on December 8
Hari-Kuyō on December 8 (Kansai region, Japan);
Forty-seven Ronin Remembrance Day in Sengaku-ji, Tokyo on December 14
Commemoration Day of 47 rōnin in Japan on December 14
World Otaku Day on December 15 (a person who is passionate about something);
Cinderella Day in Japan on December 31 (Shinderera De);
Gandzicu in Japan on January 1