Current title of the head of state and government since the Constitution of 1847. The historiography tends to divide this historical period in two, the previous one to the civil war of 1948 and the subsequent one to it. During the first period from 1847 to 1948, the liberals almost completely dominated Costa Rican politics. The liberal hegemony only broke briefly with the government of Vicente Herrera Zeledón (who however had been elected by the liberals) who ruled de facto for just over a year between 1876 and 1877. Even the dictator Federico Tinoco whose dictatorship lasted two years was also liberal. In addition, Costa Rican politics was then (and continues to be to some extent) eminently personalist, so political parties such as Civil, National, Peliquista and Republican revolved mostly around leaders and political figures and not ideologies although, in general terms, they usually be diffusely associated with liberalism.