The 1st and second division was Established with each other in 1929. In 1977, Segunda División B was Established to replace Tercera División as the third tier. Tercera División has due to the fact that been the fourth tier. An outline of the current countrywide league system is offered in https://jaidenkpuwv.blogthisbiz.com/47374802/indicators-on-what-is-la-liga-you-should-know