Millennium: 2nd millennium
Centuries: 17th century · 18th century · 19th century
Decades: 1750s · 1760s · 1770s · 1780s · 1790s · 1800s · 1810s
Years: 1781 · 1782 · 1783 · 1784 · 1785 · 1786 · 1787
1784 by topic:
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Establishments – Disestablishments
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1784 in various calendars
Gregorian calendar1784
Ab urbe condita2537
Armenian calendar1233
Assyrian calendar6534
Bengali calendar1191
Berber calendar2734
British Regnal year24 Geo. 3  25 Geo. 3
Buddhist calendar2328
Burmese calendar1146
Byzantine calendar7292–7293
Chinese calendar癸卯(Water Rabbit)
4480 or 4420
甲辰年 (Wood Dragon)
4481 or 4421
Coptic calendar1500–1501
Discordian calendar2950
Ethiopian calendar1776–1777
Hebrew calendar5544–5545
Hindu calendars
 - Vikram Samvat1840–1841
 - Shaka Samvat1705–1706
 - Kali Yuga4884–4885
Holocene calendar11784
Igbo calendar784–785
Iranian calendar1162–1163
Islamic calendar1198–1199
Japanese calendarTenmei 4
Javanese calendar1710–1711
Julian calendarGregorian minus 11 days
Korean calendar4117
Minguo calendar128 before ROC
Nanakshahi calendar316
Thai solar calendar2326–2327
Wikimedia Commons has media related to 1784.

1784 (MDCCLXXXIV) was a leap year starting on Thursday (dominical letter DC) of the Gregorian calendar and a leap year starting on Monday (dominical letter GF) of the Julian calendar, the 1784th year of the Common Era (CE) and Anno Domini (AD) designations, the 784th year of the 2nd millennium, the 84th year of the 18th century, and the 5th year of the 1780s decade. As of the start of 1784, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1918.




Date unknown




  1. Cavendish, Henry (1784). "Experiments on Air". Philosophical Transactions of the Royal Society of London. 75: 372–384. doi:10.1098/rstl.1785.0023. JSTOR 106582.
  2. Michell, John (1784). "On the Means of Discovering the Distance, Magnitude, &c. of the Fixed Stars, in Consequence of the Diminution of the Velocity of Their Light, in Case Such a Diminution Should be Found to Take Place in any of Them, and Such Other Data Should be Procured from Observations, as Would be Farther Necessary for That Purpose. By the Rev. John Michell, B.D.F.R.S. In a Letter to Henry Cavendish, Esq. F.R.S. and A.S.". Philosophical Transactions of the Royal Society of London. 75: 35–57. Bibcode:1784RSPT...74...35M. doi:10.1098/rstl.1784.0008. JSTOR 106576.

Further reading

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