**Timeline of Statistical Analysis -**

*A journey into the history of statistical analysis***17th Century**

1654 - Blaise Pascal and Pierre de Fermat were the founders of the theory of probability.

1693 - Edmund Halley discovers the mortality tables statistically for the first time relating death rate to age.

**18th Century**

1724 - Abraham de Moivre further explores mortality statistics and discoveres the theory of annuities.

1733 - Abraham de Moivre was the first to introduce normal distribution to approximate the binomial distribution in probability which was a mystery till then

1761 - Thomas Bayes was successful in providng Bayes theorem

**19th Century**

1805 - Adrien-Marie Legendre was the first to introduce the method of least squares for fitting a curve for a given set of observations

**20th Century**

1933 - Andrey Kolmogorov publishes his book Basic notions of the calculus of probability - an axiomatization of probability based on measure theory

1943 - Kenneth Levenberg designs a method for nonlinear least squares fitting

1953 - Nicholas Metropolis defines the idea of thermodynamic simulated annealing algorithms.

1962 - Donald Marquardt discovers the Levenberg-Marquardt nonlinear least squares fitting algorithm.

1980 - Introduction of Computers in Statistical Analysis which latter lead to development of statistical softwares

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