The main and 2nd division was founded collectively in 1929. In 1977, Segunda División B was Launched to replace Tercera División because the 3rd tier. Tercera División has considering the fact that that been the fourth tier. An overview of the current nationwide league procedure is presented in table 1. https://k-o-nh-c-i-8873690.activablog.com/38925492/5-simple-statements-about-what-is-la-liga-explained