1743 (MDCCXLIII) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1743rd year of the Common Era (CE) and Anno Domini (AD) designations, the 743rd year of the 2nd millennium, the 43rd year of the 18th century, and the 4th year of the 1740s decade. As of the start of 1743, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.

Millennium: 2nd millennium
1743 in various calendars
Gregorian calendar1743
Ab urbe condita2496
Armenian calendar1192
Assyrian calendar6493
Balinese saka calendar1664–1665
Bengali calendar1150
Berber calendar2693
British Regnal year16 Geo. 2 – 17 Geo. 2
Buddhist calendar2287
Burmese calendar1105
Byzantine calendar7251–7252
Chinese calendar壬戌(Water Dog)
4439 or 4379
    — to —
癸亥年 (Water Pig)
4440 or 4380
Coptic calendar1459–1460
Discordian calendar2909
Ethiopian calendar1735–1736
Hebrew calendar5503–5504
Hindu calendars
 - Vikram Samvat1799–1800
 - Shaka Samvat1664–1665
 - Kali Yuga4843–4844
Holocene calendar11743
Igbo calendar743–744
Iranian calendar1121–1122
Islamic calendar1155–1156
Japanese calendarKanpō 3
Javanese calendar1667–1668
Julian calendarGregorian minus 11 days
Korean calendar4076
Minguo calendar169 before ROC
Nanakshahi calendar275
Thai solar calendar2285–2286
Tibetan calendar阳水狗年
(male Water-Dog)
1869 or 1488 or 716
    — to —
(female Water-Pig)
1870 or 1489 or 717








  1. ^ Giscombe, C. S. (Winter 2012). "Precarious Creatures". The Kenyon Review. Gambier, Ohio: Kenyon College. 34 (NS) (1): 157–175. JSTOR 41304743. I looked it up later and found out that it's generally conceded that they were all dead by the 1680s. But a story persists that a fellow named MacQueen killed the last wolf in Scotland - and, implicitly, in all Britain - after that, in 1743. (Henry Shoemaker mentions the story in the section of Extinct Pennsylvania Animals that concerns wolves.)
1743 English cricket season

The 1743 English cricket season was the 47th cricket season since the earliest recorded eleven-a-side match was played. Details have survived of 18 eleven-a-side and three single wicket matches.

Two paintings of cricket matches date from this year. The Cricket Match by Francis Hayman hangs at Lord's and depicts a game at the Artillery Ground and An Exact Representation of the Game of Cricket by Louis Philippe Boitard now hangs in the Tate Gallery.

1743 in Canada

Events from the year 1743 in Canada.

1743 in Denmark

Events from the year 1743 in Denmark.

1743 in France

Events from the year 1743 in France.

1743 in Ireland

Events from the year 1743 in Ireland.

1743 in Russia

Events from the year 1743 in Russia

1743 in Scotland

Events from the year 1743 in Scotland.

1743 in Sweden

Events from the year 1743 in Sweden


The Celsius scale, also known as the centigrade scale, is a temperature scale used by the International System of Units (SI). As an SI derived unit, it is used by all countries except the United States, the Bahamas, Belize, the Cayman Islands and Liberia. It is named after the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale. The degree Celsius (°C) can refer to a specific temperature on the Celsius scale or a unit to indicate a difference between two temperatures or an uncertainty. Before being renamed to honor Anders Celsius in 1948, the unit was called centigrade, from the Latin centum, which means 100, and gradus, which means steps.

From 1743, the Celsius scale is based on 0 °C for the freezing point of water and 100 °C for the boiling point of water at 1 atm pressure. Prior to 1743, the scale was also based on the boiling and melting points of water, but the values were reversed (i.e. the boiling point was at 0 degrees and the melting point was at 100 degrees). The 1743 scale reversal was proposed by Jean-Pierre Christin.

By international agreement, since 1954 the unit degree Celsius and the Celsius scale are defined by absolute zero and the triple point of Vienna Standard Mean Ocean Water (VSMOW), a specially purified water. This definition also precisely relates the Celsius scale to the Kelvin scale, which defines the SI base unit of thermodynamic temperature with symbol K. Absolute zero, the lowest temperature possible, is defined as being exactly 0 K and −273.15 °C. The temperature of the triple point of water is defined as exactly 273.16 K (0.01 °C). This means that a temperature difference of one degree Celsius and that of one kelvin are exactly the same.On May 20, 2019, the degree Kelvin, and along with it the degree Celsius, will again be re-defined so that its value will be determined by definition of the Boltzmann constant.

Great Comet of 1744

The Great Comet of 1744, whose official designation is C/1743 X1, and which is also known as Comet de Chéseaux or Comet Klinkenberg-Chéseaux, was a spectacular comet that was observed during 1743 and 1744. It was discovered independently in late November 1743 by Jan de Munck, in the second week of December by Dirk Klinkenberg, and, four days later, by Jean-Philippe de Chéseaux. It became visible with the naked eye for several months in 1744 and displayed dramatic and unusual effects in the sky. Its absolute magnitude — or intrinsic brightness — of 0.5 was the sixth highest in recorded history. Its apparent magnitude may have reached as high as -7, leading it to be classified among what are called the "Great Comets". This comet is noted especially for developing a 'fan' of six tails after reaching its perihelion.

Russo-Swedish War (1741–1743)

The Russo–Swedish War of 1741–1743, known as the Hats' Russian War in Sweden and the War of the Hats in Finland, which resulted in the Lesser Wrath (Finnish: Pikkuviha, Swedish: Lilla ofreden), or the occupation of Finland, was instigated by the Hats, a Swedish political party that aspired to regain the territories lost to Russia during the Great Northern War, and by French diplomacy, which sought to divert Russia's attention from supporting its long-standing ally, the Habsburg monarchy, in the War of the Austrian Succession.

Siege of Trichinopoly (1743)

The Siege of Trichinopoly took place in 1743 during an extended series of conflicts between the Nizam and the Maratha Empire for control over some parts of southern India. An army led by Asaf Jah I, the Nizam of Hyderabad, besieged the town of Trichinopoly, which was governed by Murarao Ghorpade. After about four months of siege, the Nizam successfully bribed Murrarao to surrender, which he did on 29 August 1743.

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