John Napier invented Logarithm in _________.
John Napier invented Logarithm in 1614.
The first table based on this concept was published in 1620 in Prague by Joost Bürgi. The comparison between the two series was not based on any explicit use of the exponential notation; this was a later development.John Napier, the Scottish mathematician, published his discovery of logarithms in 1614. He was the 8th Laird of Merchiston. His Latinized name was Ioannes Neper. John Napier is best known as the discoverer of logarithms. He also invented the so-called "Napier's bones" and made common the use of the decimal point in arithmetic and mathematics.
The invention of logarithms was foreshadowed by the comparison of arithmetic and geometric sequences. ... The Scottish mathematician John Napier published his discovery of logarithms in 1614. His purpose was to assist in the multiplication of quantities that were then called sines.