<span>C. Early historians often used information from unverifiable sources.</span>
Steam boats, rail roads and telegram made communication and work easy and faster.
I'd go with d, Americans were indifferent I had that question on a test so it should be right and if you are having trouble with other courses I'd be obliged to help you.
Hope this helps.
The 24th amendment was important to the Civil Rights Movement as it ended mandatory poll taxes that prevented many African Americans. Poll taxes, combined with grandfather clauses and intimidation, effectively prevented African Americans from having any sort of political power, especially in the South. When the 24th amendment passed, five southern states, Virginia, Alabama, Texas, Arkansas, and Mississippi still had poll taxes. Most Southern states, at one time or another had poll taxes and in severe cases, had cumulative poll taxes that required the voter to pay taxes not just from that year, but also previous years they had not voted.
Answer:
La bipolaridad internacional causada por la Guerra Fría, que se desarrolló desde 1945 hasta 1991, tuvo como consecuencia principal la caída del comunismo del pedestal político en el que se encontraba hasta ese momento. El comunismo, en su esencia, fue derrotado por el capitalismo democrático defendido por el bloque occidental y, por lo tanto, perdió influencia en los países en los cuales se encontraba funcionando hasta ese momento. Así, países de Europa del Este gradualmente fueron dejando atrás el comunismo, y comenzaron a abrazar sistemas de mercado: liberalismo, socialdemocracia, etc.
Además, proscribió el uso de armas nucleares en el ámbito internacional, toda vez que la tensión generada en dicho período histórico llevó a severas restricciones y controles en la posesión y utilización de materiales bélicos nucleares.