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The following is a timeline of probability and statistics.


Before 1600

*8th century –
Al-Khalil Hebron ( ar, الخليل or ; he, חֶבְרוֹן ) is a Palestinian. city in the southern West Bank, south of Jerusalem. Nestled in the Judaean Mountains, it lies above sea level. The second-largest city in the West Bank (after East ...
, an Arab mathematician studying
cryptology Cryptography, or cryptology (from grc, , translit=kryptós "hidden, secret"; and ''graphein'', "to write", or ''-logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of adver ...
, wrote the ''Book of Cryptographic Messages''. The work has been lost, but based on the reports of later authors, it contained the first use of permutations and combinations to list all possible
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walte ...
words with and without vowels. * 9th century -
Al-Kindi Abū Yūsuf Yaʻqūb ibn ʼIsḥāq aṣ-Ṣabbāḥ al-Kindī (; ar, أبو يوسف يعقوب بن إسحاق الصبّاح الكندي; la, Alkindus; c. 801–873 AD) was an Arab Muslim philosopher, polymath, mathematician, physician ...
was the first to use
frequency analysis In cryptanalysis, frequency analysis (also known as counting letters) is the study of the frequency of letters or groups of letters in a ciphertext. The method is used as an aid to breaking classical ciphers. Frequency analysis is based on ...
to decipher
encrypted In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Ideally, only authorized parties can decip ...
messages and developed the first code breaking algorithm. He wrote a book entitled ''Manuscript on Deciphering Cryptographic Messages'', containing detailed discussions on statistics and cryptanalysis.Ibrahim A. Al-Kadi "The origins of cryptology: The Arab contributions", ''
Cryptologia ''Cryptologia'' is a journal in cryptography published six times per year since January 1977. Its remit is all aspects of cryptography, with a special emphasis on historical aspects of the subject. The founding editors were Brian J. Winkel, Davi ...
'', 16(2) (April 1992) pp. 97–126.
Al-Kindi also made the earliest known use of statistical inference. * 13th century – An important contribution of Ibn Adlan was on
sample size Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a populatio ...
for use of frequency analysis. * 13th century – the first known calculation of the probability for throwing 3 dices is published in the Latin poem
De vetula ''De vetula'' ("On the Old Woman") is a long 13th-century elegiac comedy written in Latin. It is pseudepigraphy, pseudepigraphically signed "Ovidius", and in its time was attributed to the classical Latin poet Ovid. It consists of three books of he ...
. * 1560s (published 1663) – Cardano's ''Liber de ludo aleae'' attempts to calculate probabilities of dice throws. He demonstrates the efficacy of defining
odds Odds provide a measure of the likelihood of a particular outcome. They are calculated as the ratio of the number of events that produce that outcome to the number that do not. Odds are commonly used in gambling and statistics. Odds also have ...
as the ratio of favourable to unfavourable outcomes (which implies that the probability of an event is given by the ratio of favourable outcomes to the total number of possible outcomes ). * 1577 –
Bartolomé de Medina Bartolomé may refer to: Places * Bartolomé Island (Spanish: Isla Bartolomé), a volcanic islet in the Galápagos Islands Group * Isla Bartolomé, Diego Ramirez Islands, Chile People * Bartolomé Bermejo (c.1440–c.1501), Spanish painter * Barto ...
defends
probabilism In theology and philosophy, probabilism (from Latin ''probare'', to test, approve) is an ancient Greek doctrine of Academic skepticism. It holds that in the absence of certainty, plausibility or truth-likeness is the best criterion. The term can ...
, the view that in ethics one may follow a probable opinion even if the opposite is more probable


17th century

* 1654 –
Pascal Pascal, Pascal's or PASCAL may refer to: People and fictional characters * Pascal (given name), including a list of people with the name * Pascal (surname), including a list of people and fictional characters with the name ** Blaise Pascal, Frenc ...
and
Fermat Pierre de Fermat (; between 31 October and 6 December 1607 – 12 January 1665) was a French mathematician who is given credit for early developments that led to infinitesimal calculus, including his technique of adequality. In particular, he i ...
create the mathematical theory of
probability Probability is the branch of mathematics concerning numerical descriptions of how likely an Event (probability theory), event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and ...
, * 1657 –
Huygens Huygens (also Huijgens, Huigens, Huijgen/Huygen, or Huigen) is a Dutch patronymic surname, meaning "son of Hugo". Most references to "Huygens" are to the polymath Christiaan Huygens. Notable people with the surname include: * Jan Huygen (1563– ...
's ''De ratiociniis in ludo aleae'' is the first book on mathematical probability, * 1662 – Graunt's ''Natural and Political Observations Made upon the Bills of Mortality'' makes inferences from statistical data on deaths in London, *1666 – In Le Journal des Sçavans xxxi, 2 August 1666 (359–370(=364)) appears a review of the third edition (1665) of John Graunt's Observations on the Bills of Mortality. This review gives a summary of 'plusieurs reflexions curieuses', of which the second are Graunt's data on life expectancy. This review is used by Nicolaus Bernoulli in his De Usu Artis Conjectandi in Jure (1709). *1669 – Christiaan Huygens and his brother Lodewijk discuss between August and December that year Graunts mortality table (Graunt 1662, p. 62) in letters #1755 * 1693 – Halley prepares the first
mortality table In actuarial science and demography, a life table (also called a mortality table or actuarial table) is a table which shows, for each age, what the probability is that a person of that age will die before their next birthday ("probability of de ...
s statistically relating death rate to age,


18th century

* 1710 –
Arbuthnot Arbuthnot or Arbuthnott may refer to: * Michael Arbuthnot Ashcroft, British codebreaker during WW2 *Arbuthnot (surname), Scottish surname (and people with that name) * ''Arbuthnot'' (schooner), British ship during the American Revolutionary War *A ...
argues that the constancy of the ratio of male to female births is a sign of divine providence, * 1713 – Posthumous publication of
Jacob Bernoulli Jacob Bernoulli (also known as James or Jacques; – 16 August 1705) was one of the many prominent mathematicians in the Bernoulli family. He was an early proponent of Leibnizian calculus and sided with Gottfried Wilhelm Leibniz during the L ...
's ''
Ars Conjectandi (Latin for "The Art of Conjecturing") is a book on combinatorics and mathematical probability written by Jacob Bernoulli and published in 1713, eight years after his death, by his nephew, Nicolaus I Bernoulli, Niklaus Bernoulli. The seminal wo ...
'', containing the first derivation of a
law of large numbers In probability theory, the law of large numbers (LLN) is a theorem that describes the result of performing the same experiment a large number of times. According to the law, the average of the results obtained from a large number of trials sho ...
, * 1724 –
Abraham de Moivre Abraham de Moivre FRS (; 26 May 166727 November 1754) was a French mathematician known for de Moivre's formula, a formula that links complex numbers and trigonometry, and for his work on the normal distribution and probability theory. He mov ...
studies mortality statistics and the foundation of the theory of
annuities In investment, an annuity is a series of payments made at equal intervals.Kellison, Stephen G. (1970). ''The Theory of Interest''. Homewood, Illinois: Richard D. Irwin, Inc. p. 45 Examples of annuities are regular deposits to a savings account, m ...
in ''Annuities upon Lives'', * 1733 – Abraham de Moivre introduces the
normal distribution In statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is : f(x) = \frac e^ The parameter \mu i ...
to approximate the
binomial distribution In probability theory and statistics, the binomial distribution with parameters ''n'' and ''p'' is the discrete probability distribution of the number of successes in a sequence of ''n'' independent experiments, each asking a yes–no qu ...
in probability, * 1739 –
Hume Hume most commonly refers to: * David Hume (1711–1776), Scottish philosopher Hume may also refer to: People * Hume (surname) * Hume (given name) * James Hume Nisbet (1849–1923), Scottish-born novelist and artist In fiction * Hume, the ...
's ''
Treatise of Human Nature '' A Treatise of Human Nature: Being an Attempt to Introduce the Experimental Method of Reasoning into Moral Subjects'' (1739–40) is a book by Scottish philosopher David Hume, considered by many to be Hume's most important work and one of the ...
'' argues that inductive reasoning is unjustified, * 1761 –
Thomas Bayes Thomas Bayes ( ; 1701 7 April 1761) was an English statistician, philosopher and Presbyterian minister who is known for formulating a specific case of the theorem that bears his name: Bayes' theorem. Bayes never published what would become h ...
proves
Bayes' theorem In probability theory and statistics, Bayes' theorem (alternatively Bayes' law or Bayes' rule), named after Thomas Bayes, describes the probability of an event, based on prior knowledge of conditions that might be related to the event. For exa ...
, * 1786 – Playfair's ''Commercial and Political Atlas'' introduces
graphs Graph may refer to: Mathematics *Graph (discrete mathematics), a structure made of vertices and edges **Graph theory, the study of such graphs and their properties * Graph (topology), a topological space resembling a graph in the sense of discr ...
and
bar chart A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or length Length is a measure of distance. In the International System of Quantities, length is a quantity with dimension dist ...
s of data,


19th century

* 1801 –
Gauss Johann Carl Friedrich Gauss (; german: Gauß ; la, Carolus Fridericus Gauss; 30 April 177723 February 1855) was a German mathematician and physicist who made significant contributions to many fields in mathematics and science. Sometimes refer ...
predicts the orbit of Ceres using a line of best fit * 1805 –
Adrien-Marie Legendre Adrien-Marie Legendre (; ; 18 September 1752 – 9 January 1833) was a French mathematician who made numerous contributions to mathematics. Well-known and important concepts such as the Legendre polynomials and Legendre transformation are nam ...
introduces the
method of least squares The method of least squares is a standard approach in regression analysis to approximate the solution of overdetermined systems (sets of equations in which there are more equations than unknowns) by minimizing the sum of the squares of the res ...
for fitting a curve to a given set of observations, * 1814 –
Laplace Pierre-Simon, marquis de Laplace (; ; 23 March 1749 – 5 March 1827) was a French scholar and polymath whose work was important to the development of engineering, mathematics, statistics, physics, astronomy, and philosophy. He summariz ...
's ''Essai philosophique sur les probabilités'' defends a definition of probabilities in terms of equally possible cases, introduces
generating function In mathematics, a generating function is a way of encoding an infinite sequence of numbers () by treating them as the coefficients of a formal power series. This series is called the generating function of the sequence. Unlike an ordinary ser ...
s and
Laplace transform In mathematics, the Laplace transform, named after its discoverer Pierre-Simon Laplace (), is an integral transform that converts a function of a real variable (usually t, in the ''time domain'') to a function of a complex variable s (in the ...
s, uses
conjugate prior In Bayesian probability theory, if the posterior distribution p(\theta \mid x) is in the same probability distribution family as the prior probability distribution p(\theta), the prior and posterior are then called conjugate distributions, and t ...
s for
exponential families In probability and statistics, an exponential family is a parametric set of probability distributions of a certain form, specified below. This special form is chosen for mathematical convenience, including the enabling of the user to calculate ...
, proves an early version of the
Bernstein–von Mises theorem In Bayesian inference, the Bernstein-von Mises theorem provides the basis for using Bayesian credible sets for confidence statements in parametric models. It states that under some conditions, a posterior distribution converges in the limit of i ...
on the asymptotic irrelevance of prior distributions on the limiting posterior distribution and the role of the
Fisher information In mathematical statistics, the Fisher information (sometimes simply called information) is a way of measuring the amount of information that an observable random variable ''X'' carries about an unknown parameter ''θ'' of a distribution that model ...
on asymptotically normal posterior modes. * 1835 –
Quetelet Lambert Adolphe Jacques Quetelet FRSF or FRSE (; 22 February 1796 – 17 February 1874) was a Belgian astronomer, mathematician, statistician and sociologist who founded and directed the Brussels Observatory and was influential in introduci ...
's ''Treatise on Man'' introduces social science statistics and the concept of the "average man", * 1866 –
Venn Venn is a surname and a given name. It may refer to: Given name * Venn Eyre (died 1777), Archdeacon of Carlisle, Cumbria, England * Venn Pilcher (1879–1961), Anglican bishop, writer, and translator of hymns * Venn Young (1929–1993), New Zea ...
's ''Logic of Chance'' defends the frequency interpretation of probability. * 1877–1883 –
Charles Sanders Peirce Charles Sanders Peirce ( ; September 10, 1839 – April 19, 1914) was an American philosopher, logician, mathematician and scientist who is sometimes known as "the father of pragmatism". Educated as a chemist and employed as a scientist for ...
outlines
frequentist statistics Frequentist inference is a type of statistical inference based in frequentist probability, which treats “probability” in equivalent terms to “frequency” and draws conclusions from sample-data by means of emphasizing the frequency or pr ...
, emphasizing the use of objective
randomization Randomization is the process of making something random. Randomization is not haphazard; instead, a random process is a sequence of random variables describing a process whose outcomes do not follow a deterministic pattern, but follow an evolution ...
in
experiments An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when ...
and in sampling. Peirce also invented an optimally designed experiment for regression. * 1880 –
Thiele Thiele is a German-language surname. Geographical distribution As of 2014, 78.0% of all known bearers of the surname ''Thiele'' were residents of Germany, 10.9% of the United States, 2.3% of Australia, 2.0% of Brazil, 1.0% of Canada and 1.0% of Sou ...
gives a mathematical analysis of
Brownian motion Brownian motion, or pedesis (from grc, πήδησις "leaping"), is the random motion of particles suspended in a medium (a liquid or a gas). This pattern of motion typically consists of random fluctuations in a particle's position insi ...
, introduces the
likelihood function The likelihood function (often simply called the likelihood) represents the probability of random variable realizations conditional on particular values of the statistical parameters. Thus, when evaluated on a given sample, the likelihood funct ...
, and invents
cumulant In probability theory and statistics, the cumulants of a probability distribution are a set of quantities that provide an alternative to the '' moments'' of the distribution. Any two probability distributions whose moments are identical will hav ...
s. * 1888 –
Galton Sir Francis Galton, Fellow of the Royal Society, FRS Royal Anthropological Institute of Great Britain and Ireland, FRAI (; 16 February 1822 – 17 January 1911), was an English Victorian era polymath: a statistician, sociologist, psycholo ...
introduces the concept of
correlation In statistics, correlation or dependence is any statistical relationship, whether causal or not, between two random variables or bivariate data. Although in the broadest sense, "correlation" may indicate any type of association, in statisti ...
, * 1900 –
Bachelier Louis Jean-Baptiste Alphonse Bachelier (; 11 March 1870 – 28 April 1946) was a French mathematician at the turn of the 20th century. He is credited with being the first person to model the stochastic process now called Brownian motion, as part ...
analyzes
stock price A share price is the price of a single share of a number of saleable equity shares of a company. In layman's terms, the stock price is the highest amount someone is willing to pay for the stock, or the lowest amount that it can be bought for. B ...
movements as a stochastic process,


20th century

* 1908 – Student's t-distribution for the mean of small samples published in English (following earlier derivations in German). * 1913 – Michel Plancherel states fundamental results in
Ergodic theory Ergodic theory (Greek: ' "work", ' "way") is a branch of mathematics that studies statistical properties of deterministic dynamical systems; it is the study of ergodicity. In this context, statistical properties means properties which are expres ...
. * 1920 – The
central limit theorem In probability theory, the central limit theorem (CLT) establishes that, in many situations, when independent random variables are summed up, their properly normalized sum tends toward a normal distribution even if the original variables thems ...
in its modern form was formally stated. * 1921 –
Keynes John Maynard Keynes, 1st Baron Keynes, ( ; 5 June 1883 – 21 April 1946), was an English economist whose ideas fundamentally changed the theory and practice of macroeconomics and the economic policies of governments. Originally trained in ...
' ''Treatise on Probability'' defends a logical interpretation of probability.
Wright Wright is an occupational surname originating in England. The term 'Wright' comes from the circa 700 AD Old English word 'wryhta' or 'wyrhta', meaning worker or shaper of wood. Later it became any occupational worker (for example, a shipwright is ...
develops path analysis. * 1928 –
Tippett Tippett is a surname. Notable people with the surname include: * Andre Tippett (born 1959), American Hall of Fame footballer *Clark Tippet (1954–1992), American dancer *Dave Tippett (born 1961), ice hockey coach * Keith Tippett (born 1947), Eng ...
and Fisher introduce
extreme value theory Extreme value theory or extreme value analysis (EVA) is a branch of statistics dealing with the extreme deviations from the median of probability distributions. It seeks to assess, from a given ordered sample of a given random variable, the ...
, * 1933 –
Andrey Nikolaevich Kolmogorov Andrey Nikolaevich Kolmogorov ( rus, Андре́й Никола́евич Колмого́ров, p=ɐnˈdrʲej nʲɪkɐˈlajɪvʲɪtɕ kəlmɐˈɡorəf, a=Ru-Andrey Nikolaevich Kolmogorov.ogg, 25 April 1903 – 20 October 1987) was a Sovi ...
publishes his book ''Basic notions of the calculus of probability'' (''Grundbegriffe der Wahrscheinlichkeitsrechnung'') which contains an axiomatization of probability based on measure theory, * 1935 –
R. A. Fisher Sir Ronald Aylmer Fisher (17 February 1890 – 29 July 1962) was a British polymath who was active as a mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathem ...
's ''Design of Experiments'' (1st ed), * 1937 –
Neyman Neyman is a surname. Notable people with the surname include: * Abraham Neyman (born 1949), Israeli mathematician *Benny Neyman (1951–2008), Dutch singer * Jerzy Neyman (1894–1981), Polish mathematician; Neyman construction and Neyman–Pearson ...
introduces the concept of
confidence interval In frequentist statistics, a confidence interval (CI) is a range of estimates for an unknown parameter. A confidence interval is computed at a designated ''confidence level''; the 95% confidence level is most common, but other levels, such as ...
in statistical testing, * 1941 – Due to the World War II, research on detection theory started, leading to the
Receiver operating characteristic A receiver operating characteristic curve, or ROC curve, is a graphical plot that illustrates the diagnostic ability of a binary classifier system as its discrimination threshold is varied. The method was originally developed for operators of m ...
* 1946 –
Cox's theorem Cox's theorem, named after the physicist Richard Threlkeld Cox, is a derivation of the laws of probability theory from a certain set of postulates. This derivation justifies the so-called "logical" interpretation of probability, as the laws of pr ...
derives the axioms of probability from simple logical assumptions, * 1948 –
Shannon Shannon may refer to: People * Shannon (given name) * Shannon (surname) * Shannon (American singer), stage name of singer Shannon Brenda Greene (born 1958) * Shannon (South Korean singer), British-South Korean singer and actress Shannon Arrum Wil ...
's '' Mathematical Theory of Communication'' defines capacity of communication channels in terms of probabilities, * 1953 –
Nicholas Metropolis Nicholas Constantine Metropolis (Greek: ; June 11, 1915 – October 17, 1999) was a Greek-American physicist. Metropolis received his BSc (1937) and PhD in physics (1941, with Robert Mulliken) at the University of Chicago. Shortly afterwards, ...
introduces the idea of thermodynamic
simulated annealing Simulated annealing (SA) is a probabilistic technique for approximating the global optimum of a given function. Specifically, it is a metaheuristic to approximate global optimization in a large search space for an optimization problem. ...
methods


See also

*
Founders of statistics Statistics is the theory and application of mathematics to the scientific method including hypothesis generation, experimental design, sampling, data collection, data summarization, estimation, prediction and inference from those results to the ...
* List of important publications in statistics *
History of probability Probability has a dual aspect: on the one hand the likelihood of hypotheses given the evidence for them, and on the other hand the behavior of stochastic processes such as the throwing of dice or coins. The study of the former is historically olde ...
*
History of statistics Statistics, in the modern sense of the word, began evolving in the 18th century in response to the novel needs of industrializing sovereign states. In early times, the meaning was restricted to information about states, particularly demographics ...


References


Further reading

* * * * {{DEFAULTSORT:Timeline of Probability And Statistics History of probability and statistics
Probability and Statistics Probability and statistics are two closely related fields in mathematics, sometimes combined for academic purposes. They are covered in several articles: * Probability Probability is the branch of mathematics concerning numerical descriptio ...
Statistics-related lists