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Hashtag
#TodayinHistory
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Venn diagram illustration of set relations for two sets: intersection, union, symmetric difference, relative and absolute complement
Cheeky plaque celebrating John Venn in Cambridge. Two overlapping circles, one labeled "Mathematician, Philosopher & Anglican priest", the other labeled "Really strong beard game", with "John Venn" in the intersection.
Venn diagram showing the components of a good visualization: Information, story, goal, visual form and their intersections. From: Information is Beautiful
B/W photo of John Venn with a long scraggly beard
#TodayinHistory #dataviz #Onthisday #OTD π
π Apr 04, 1923 John Venn died in Cambridge, England π¬π§
1880: Developed the eponymous Venn diagrams to represent logical relationships
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Image of Napier's bones: It is a manually operated calculating device created by John Napier for the calculation of products and quotients of numbers
Table of logarithms of angles from 0 to 89 published by Napier
Portrait of John Napier
#TodayinHistory #dataviz #Onthisday #OTD π
π Apr 04, 1617 John Napier died in Edinburgh, Scotland π΄σ §σ ’σ ³σ £σ ΄σ Ώ
1614: Invention of logarithms, and the first published tables of logarithms.
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A line graph, titiled Plate XIV. Showing relation of height (Y axis) to weight (X axis) in English boys. Two curves are drawn, one labeled 'Laboring classes' the other 'Non laboring classes'
Cover of Bowditch's book, The Growth of Children
Photo of Henry Pickering Bowditch
#TodayinHistory #dataviz #Onthisday #OTD π
πApr 04, 1840 Henry Pickering Bowditch born in Boston, USA πΊπΈ
1877: Extensive statistical study of 24,500 children to improve school practice; early ideas of correlation and regression
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Washington's army leaves successful siege of Boston for the defense of New York.n
4 Apr 1776
Washington's army leaves successful siege of Boston for the defense of New York.
#RevWar #TodayInHistory
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Today in History - 1968: Civil rights leader Martin Luther King Jr., 39, was shot and killed while standing on a balcony of the Lorraine Motel in Memphis, Tenn. #TodayInHistory
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Portrait of Ernst Chaladni overlaid with a collection of the patterns he created / observed
A collection of Chaladni patterns
A machine vibrating flat plates that generates Chaladni patterns
#TodayinHistory #dataviz #Onthisday #OTD π
π Apr 03, 1827 Ernest Florens Friedrich Chladni died in Warsaw, Poland π΅π±
1787: Visualization of vibration patterns (by spreading a uniform layer of sand on a disk, and observing displacement when vibration is applied)
Who knew? Boggled many minds!
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π On this day in 1043 CE: Edward the Confessor is crowned King of England.Β
Edward the Confessor, also known as Saint Edward the Confessor, reigned as king of England from 1042 to 1066 CE.
π Article by Mark Cartwright.Β
#EdwardTheConfessor #EnglishHistory #OnThisDay #TodayInHistory #History
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Today in History - 1865: Union forces occupied the Confederate capital of Richmond, Virginia. #TodayInHistory
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Seaman's 1798 plot of cases of yellow fever in lower Manhattan near the Hudson River. Cases are shown by Xs and small circles
Image of Valentine Seaman seated at a desk, reading a paper
#TodayinHistory #dataviz #Onthisday #OTD π
π Apr 02, 1770 Valentine Seaman born in Queens Country, NY, USA
In 1790, he created the first maps of the incidence of disease (yellow fever), using dots and circles to show individual occurrences in waterfront areas of New York (precedes John Snow)
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ANOTHER today in history!!
In 2598, Earthβs first schizophrenic President Jim Jacobs and his alter ego/ VP Jacob Jim declare soup illegal. Equally as inexplicable is the popularity of the declaration.
Also today, a tool gets fired! Via @crockett.house.gov #todayinhistory #pambondi #yourefired
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Today in history, April 2!
Today in 2270, In honor of Artemisβ launch, the Moon elects me as its first Emperor! I serve two terms and was followed by my VE, Veth the Moon Worm.
Also today, we return! Love and luck Artemis!! Via @the-science-guys.bsky.social #artemis #themoon #todayinhistory #nasa
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On this day in 2015, βXenoblade Chronicles 3Dβ was released for the New Nintendo 3DS.
#MonolithSoftDevelopmentHistory #TodayInHistory
monolithsoft.co.jp/games/
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Congress creates U.S. Mint, establishing $10, $5, $2.50, $1, 50c, 25c, 10c, 5c, 1c, and 1/2c coins.n
2 Apr 1792
Congress creates U.S. Mint, establishing $10, $5, $2.50, $1, 50c, 25c, 10c, 5c, 1c, and 1/2c coins.
#RevWar #TodayInHistory
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Today in History - 1792: Congress passed the Coinage Act, establishing the United States Mint as the federally authorized producer of the nationβs coin currency. #TodayInHistory
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A section of one of Martonne's 1919 ethnographic maps showing a part of Europe with colors and shading patterns identifying dominant ethnic groups
Zoomed in portion of Martonne's 1919 map, showing more detail and use of shading for areas of mixed ethnographic composition.
Photo of Emmanuel de Martonne with his signature
#TodayinHistory #dataviz #Onthisday #OTD π
πApr 01, 1873 Emmanuel de Martonne born in Chabris, France π«π·
In 1919 after WW I his ethnographic maps, showing the distribution of mixed nationalities, played an important role in redrawing national boundaries of Central Europe
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Graph of the male / female birth ratio (Ratio) over 82 years from 1629 - 1710, with the points connected by lines. Also shown is the loess smooth curve, and a thick red line at the value Ratio = 1. The fact that all 82 points are above this line is equivalent in probability to getting 82 heads in 82 coin tosses.
Painted portrait of John Arbuthnot by the artist John Kneller
#TodayinHistory #dataviz #OTD π
πApr 1, 1667 John Arbuthnot born in Inverbervie, Kincardine, Scotland π΄σ §σ ’σ ³σ £σ ΄σ Ώ
1711: First test of statistical significance based on deviation between observed data and a null hypothesis (M/F birth ratio = 1)
#rstats: data(Arbuthnot, package = "HistData")
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1748: The ruins of Pompeii are rediscovered.
1924: Adolf Hitler sentenced to 5yrs labour for "Beer Hall Putsch".
1948: "Big Bang" theory proposed by American cosmologists Alpher, Bethe, & Gamow.
2001: The Netherlands becomes the first country to make same-sex marriage legal. #todayinhistory
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Today in History - 1976: Apple Computer was founded by Steve Jobs, Steve Wozniak, and Ronald Wayne. Happy 50th Birthday Apple !!! #TodayInHistory
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Detail of a letter sent by Michael Florent van Langren to Princess Isabella of Spain. It shows a one-dimensional line graph representing estimates of the longitude distance from Toledo to Rome. Seven estimates are shown as points on this line. Above each is the name of the astronomer who gave that estimate. The goal was to convince the King of Spain to fund van Langren so that he could find the solution to the longitude problem.
#TodayinHistory #dataviz #Onthisday #OTD π
π
Mar, 1628 [no day] Michael Florent van Langren presented the FIRST STATISTICAL GRAPH, in a letter to Isabella of Spain [Friendly-etal:2010]
A simple 1D dot plot, showing the 'extravagent errors' in estimates of longitude
π bit.ly/3DXaBZJ for the story
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#TodayinHistory #dataviz #Onthisday #OTD π
π Mar 31, 1727 Isaac Newton died in Kensington, London, England π¬π§
What to commend him for?
Calculus?
Gravity?
I'll take: 1704-- Optics & color theory
-- studies refraction / diffraction of light, color mixtures ...
Link: s.si.edu/4i6nYVy
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A page from Descarte's La Geometrie, showing geometric drawings interspersed with text.
Portrait of RenΓ© Descartes
#TodayinHistory #dataviz #Onthisday #OTD π
π Mar 31, 1596 RenΓ© Descartes born in La Haye-Descartes, France π«π·
1637: Along with Fermat, Descartes reintroduced coordinate systems in analytic geometry; relationship established between graphed line and equation ππ
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Today in History - 1918: The U.S. made the first switch to Daylight Saving Time. #TodayInHistory
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Abigail Adams urges her husband John to "Remember the Ladies" in making laws for the new nation.
31 Mar 1776
Abigail Adams urges her husband John to "Remember the Ladies" in making laws for the new nation.
#RevWar #TodayInHistory
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1596: French philosopher RenΓ© Descartes born in Descartes, France.
1727: English physicist, mathematician, & astronomer, Isaac Newton dies at 84.
1889: Eiffel Tower officially opens for dignitaries & an award ceremony in Paris.
1967: Jimi Hendrix first burns his guitar in London. #todayinhistory
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