 During much of the 20th century, there were heated political conflicts over the use of either of the two varieties, especially over the issue of their use in education.Schools were forced to switch from one form to the other and back several times during the 20th century.The conflict was resolved only after the overthrow of the Greek military junta of 1967-1974, whose strong ideological pro-Katharevousa stance had ultimately contributed to bringing that language form into disrepute.