１８４０年

• Traditional Chinese Character(HanT): １８４０年
• Simplified Chinese Character(HanS): １８４０年
• Bopomofo(Mandarin Phonetic Symbols): ㄧ ㄅㄚ ㄙˋ ㄌㄧㄥˊ ㄋㄧㄢˊ (ㄧㄅㄙㄌㄋ)
• Bopomofo(Zhuyin Keyboard Input/IME): "u 18 n4xu/6su06" (u18n4xu/6su06)
• 「１８４０年」的漢語拼音: Yi1 Ba1 Si4 Ling2 Nian2
• (ASCII) Hanyu Pinyin: "yibasilingnian" "Yi1Ba1Si4Ling2Nian2" "Yi1 Ba1 Si4 Ling2 Nian2" (YBSLN)
• (Latin) Hànyǔ Pīnyīn: YīBāSìLíng [ Yī Bā Sì Líng ]
• (英文翻譯) English Translation: "1840"
• (西語翻譯) Traducción Español: "1840"
• (日文翻譯) 日本語翻訳: "1840年"