4umi.com/year

< MDCCCI = 1801 >

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July
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Augustus
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September
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October
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December
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Events in 1801

1 January: Italian astronomer Giuseppe Piazzi discovers Ceres, the smallest known dwarf planet in the solar system.
4 January: The thirty days of Ramadan in the Islamic year 1215 begin at the first sighting of the lunar crescent.
13 January: The Julian calendar including its New Year's Day is delayed by 12 days.
3 February: Muslims celebrate the Conclusion of the Fast on the first day of the month Shawwal.
13 February: This Chinese New Year the Monkey makes way for the Year of the Rooster.
30 March: Jews celebrate Pesach for the next seven or eight days.
5 April: The resurrection of Jesus Christ is celebrated Easter Sunday after the first full moon after the spring equinox as fixed by the Council of Nicaea in 325.
12 April: Muslims celebrate the Festival of Sacrifice on the tenth day of the month Dhu al-Hijjah.
24 May: Seven weeks after Easter Christians celebrate Pentecost, possibly since 68 AD.
27 July: George Biddell Airy, English mathematician and astronomer, is born in Alnwick.
17 September: Jews celebrate Yom Kippur since sunset last night.
29 September: In Leipzig the “Disquisitiones Arithmeticae” by Carl Friedrich Gauss is published, revolutionizing mathematical number theory.
24 December: Christmas Eve starts off the holidays celebrating the birth of Jesus of Nazareth.
24 December: The thirty days of Ramadan in the Islamic year 1216 begin at the first sighting of the lunar crescent.

People in 1801

François Laurent, Immanuel Kant, Charles Messier, Joseph Haydn, James Watt, Rama I, Joseph-Louis Lagrange, William Herschel, Joseph-Michel Montgolfier, Thomas Jefferson, Eise Eisinga, Johann Christian Fabricius, Alessandro Volta, Jacques Charles, Giuseppe Piazzi, Francisco Goya, Jacques-Louis David, Edward Jenner, Johann Wolfgang von Goethe, James Madison, Jean-Pierre Blanchard, Ernst Chladni, Gilbert du Motier, William Blake, Horatio Nelson, Friedrich Schiller, Luigi Cherubini, Marie Tussaud, Joseph Niépce, Robert Fulton, Francis II, Muhammad Ali, Napoleon Bonaparte, André-Jacques Garnerin, Ludwig van Beethoven, Georg Wilhelm Friedrich Hegel, Richard Trevithick, Samuel Taylor Coleridge, Clemens von Metternich, Francis Beaufort, André-Marie Ampère, Carl Friedrich Gauss, Thomas Moore, Friedrich Fröbel, Simón Bolívar, Joseph von Fraunhofer, Louis Daguerre, Arthur Schopenhauer, Christian Thomsen, Georg Ohm, Jean-François Champollion, Michael Faraday, Charles Babbage, Samuel Morse, Gioachino Rossini, Thomas Carlyle, James Braid, Michael Thonet, Heinrich Heine, Franz Schubert, Eugène Delacroix and Alexander Pushkin celebrated their birthday this year.

Presenting 1801

The year 1801 was a common year starting on a Thursday, just like 1705, 1711, 1722, 1733, 1739, 1750, 1761, 1767, 1778, 1789 and 1795 in the century before it and 1807, 1818, 1829, 1835, 1846, 1857, 1863, 1874, 1885 and 1891 in the next.

The coloured days highlight birthscake, deathsdagger, politicalcrown, scientificpaperclip, artisticpaperclip and otherasterisk historical milestones, and recurring events such as anniversaries and holidaysanchor. The newnew moon, waxingwaxing moon, fullfull moon and waningwaning moon icons indicate the phases of the moon and appear only for dates in the Gregorian calendar, i.e. after 14 October 1582. The Chinese calendar is available only from 1645 to 2644, the first millenium since the last reform. The coloured columns mark the Sundays, the last day of the week per standard ISO-8601.

Calculating time

The normal calendar page for the current /year?2017 contains an introduction to the intriguing history of the year as we know it. The Calendar Converter has more detail. The so called Perpetual Calendar uses a trick from before the age of computers to find the weekday for any Gregorian date. Also see an overview of all historical events in the last six thousand years.

URL: < http://4umi.com/year?1801 >, created 23 January 2011, changed 13 September 2012, served 24 September 2017.
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