The primary and 2nd division was founded alongside one another in 1929. In 1977, Segunda División B was Launched to exchange Tercera División given that the third tier. Tercera División has since that been the fourth tier. An overview of the current nationwide league system is offered in desk one. https://devingknps.blogscribble.com/40131411/what-is-la-liga-no-further-a-mystery