1840

Summary

1840 is a calendar year^[1]. 1840 has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[2]

Key Facts

• 1840's instance of is recorded as calendar year^[3].
• 1840's instance of is recorded as leap year^[4].
• 1840's instance of is recorded as leap year starting on Wednesday and ending on Thursday^[5].
• 1840 followed 1839^[6].
• 1840 was followed by 1841^[7].
• 1840 is part of 1840s^[8].
• 1840 is part of Gregorian calendar^[9].
• 1840's Commons category is recorded as 1840^[10].
• 1840 comprises August 1840^[11].
• 1840 comprises April 1840^[12].
• 1840 comprises December 1840^[13].
• 1840 comprises February 1840^[14].
• 1840 comprises January 1840^[15].
• 1840 comprises July 1840^[16].
• 1840 comprises June 1840^[17].
• 1840 comprises May 1840^[18].
• 1840 comprises March 1840^[19].
• 1840 comprises November 1840^[20].
• 1840 comprises October 1840^[21].
• 1840 comprises September 1840^[22].
• 1840 took place on January 1, 1840^[23].
• 1840's topic's main category is recorded as Category:1840^[24].
• 1840's has list is recorded as list of state leaders in 1840^[25].
• 1840's permanent duplicated item is recorded as Q31802576^[26].
• 1840's related category is recorded as Category:1840-related lists^[27].

Body

Definition and Type

Recorded instance of include calendar year^[3], leap year^[4], and leap year starting on Wednesday and ending on Thursday^[5].

Use and Application

Components include August 1840^[11], an August^[28]; April 1840^[12], an April^[29]; December 1840^[13], a December^[30]; February 1840^[14], a February^[31]; January 1840^[15], a January^[32]; and July 1840^[16], a July^[33]. Part of include 1840s^[8], a decade^[34] and Gregorian calendar^[9], an arithmetic calendar^[35], founded in 1582^[36].

Why It Matters

1840 has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[2]