Quantitative revolution

In the history of geography, the quantitative revolution (QR) was one of the four major turning-points of modern geography – the other three being environmental determinism, regional geography and critical geography). The main claim for the quantitative revolution is that it led to a shift from a descriptive (idiographic) geography to an empirical law-making (nomothetic) geography. The quantitative revolution occurred during the 1950s and 1960s and marked a rapid change in the method behind geographical research, from regional geography into a spatial science.