Answer:
1 . Prohibition repealed nationwide with the Twenty-First Amendment
2. Sipuel v. Board of Regents of University of Oklahoma
3. McLaurin v. Oklahoma State Regents
4. Sputnik I launched by Soviets, starting the Space Race
Explanation:
Prohibition repealed nationwide with the Twenty-First Amendment - <em>1933</em>
Sipuel v. Board of Regents of University of Oklahoma - <em>1948</em>
McLaurin v. Oklahoma State Regents - <em>1950</em>
Sputnik I launched by Soviets, starting the Space Race - <em>195</em><u><em>7</em></u>
<u><em>This answer is correct for Plato</em></u>