a period beginning in the last quarter of the 20th century when information became easily accessible through publications and through the manipulation of information by computers and computer networks. Type of: epoch, era. a period marked by distinctive character or reckoned from a fixed point or event.Explanation:
The astrolabe was used to help determine the ship's latitude
When Americans think of African-Americans in the DEEP SOUTH before the Civil War, the first image that invariably comes to mind is one of slavery. However, many African-Americans were able to secure their freedom and live in a state of semi-freedom even before slavery was abolished by war. FREE BLACKS lived in all parts of the United States, but the majority lived amid slavery in the American South. According to the 1860 U.S. Census, there were 250,787 free blacks living in the South in contrast to 225,961 free blacks living everywhere else in the country including the Midwest and the Far West; however, not everyone, particularly free blacks, were captured by census takers. In the upper south, the largest population of free blacks were in Maryland and Virginia; in the mid-Atlantic, the largest population of free blacks was in Philadelphia.
During the 1950's, the US had adopted a policy of containment. The goal was to stop the spread of communism on a global scale. This included giving financial and military aid to countries who might fall into the hands of a communist government. A perfect example of this would be South Korea.
During the early 1950's, North Korea (a communist country) invaded South Korea. America, worried about the spread of communism, wanted to ensure that South Korea stayed free of this communist system. To do this, the US helped convince the United Nations to intervene in the conflict between North and South Korea.
The first crop that formed the basis of the economy in the Southern states was tobacco. But at the beginning of the 19th century cotton became the most important. During the 1840s and 1850s cotton became the chief United States export. It was known as "King cotton". The rapid agricultural growth of the South led to financial and political tensions between the Northern and the Southern states. Answer: The most important Southern crop in the 1840s and 1850s was cotton.