Generally speaking, Hiragana is used to write Japanese words (including ordinary Chinese characters) and Katakana is used to write foreign proper nouns (so-called loanwords).
Hiragana is a phonetic symbol in Japanese. Hiragana evolved from the cursive script of Chinese characters in China. In the early days, it was reserved for Japanese women. Later, with the popularity of Murasaki shikibu's Tale of Genji, Japanese men began to accept and use Hiragana.
Katakana (かたかな) is an ideograph in Japan? (sound? Text). Together with Hiragana and Ye Wan pseudonyms, they are called pseudonyms.
In modern Japanese, hiragana is often used to represent the vocabulary and grammatical auxiliary words inherent in Japanese, and hiragana is also commonly used when phonetic notation of Japanese Chinese characters, which is called vibrating kana.
Taiwan Province's early textbooks claimed that Katakana was created by the monk Konghai, but this is not true. The cause of pseudonym is the simplification of Chinese characters, not the work of one person.
This legend was invented by a monk from China who was studying in Japan. Hiragana is designed for women. Once called "female hand", such as {Tale of Genji}, it was also used by men in private occasions until 1946 when Japan was defeated. After the reform, Japanese was written in Chinese characters and Hiragana.
Katakana is used for: 1, foreigners' names, place names 2, onomatopoeic words, mimetic words 3, expressing some kind of emphasis, playing a bold role 4, animal and plant names 5, telegrams.