- Traditional Chinese Character(HanT):
521年
- Simplified Chinese Character(HanS):
521年
- Bopomofo(Mandarin Phonetic Symbols): ㄨˇ ㄦˋ ㄧ ㄋㄧㄢˊ (ㄨㄦㄧㄋ)
- Bopomofo(Zhuyin Keyboard Input/IME): "j3-4u su06" (j3-4usu06)
- (ASCII) Hanyu Pinyin: "wueryinian" "Wu3Er4Yi1Nian2" "Wu3 Er4 Yi1 Nian2" (WEYN)
- (Latin) Hànyǔ Pīnyīn: WǔèrYī [ Wǔ èr Yī ]
- (英文翻譯) English Translation: "521"
- (西語翻譯) Traducción Español: "521"
- (日文翻譯) 日本語翻訳: "521"