The initial and 2nd division was founded alongside one another in 1929. In 1977, Segunda División B was Launched to switch Tercera División as the 3rd tier. Tercera División has considering that that been the fourth tier. An outline of the present nationwide league program is offered in table 1. https://tlkonhci87529.techionblog.com/40109198/what-is-la-liga-an-overview