The initial and next division was founded collectively in 1929. In 1977, Segunda División B was Launched to interchange 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 process is introduced in table 1. https://sergiocxskd.onesmablog.com/little-known-facts-about-what-is-la-liga-80996144