Why 21 years old is the age limit for alcohol in some countries?

Many scholars and observers have argued that the ratification of the fourteenth amendment to the constitution has become the single most important act in all of united states politics. (a) identify which provision of the fourteenth amendment was applied to the following supreme court cases. for each case, explain the significance of the decision in united states politics. ' mapp v. ohio (1961) ' gideon v. wainwright (1963) (b) identify which provision of the fourteenth amendment was applied to the following supreme court cases. for each case, explain the significance of the decision in united states politics. ' brown v. board of education (1954) ' baker v. carr (1962) ' regents of the university of california v. bakke (1978)