Answer: The one-drop rule is a social and legal principle of racial classification that was historically prominent in the United States in the 20th century. It asserted that any person with even one ancestor of sub-Saharan African ancestry ("one drop" of black blood) is considered black (Negro or colored in historical terms).
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Andrew Jackson.
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He was the only person on this list who was a US president in ths time period and was known for the Trail of Tears, which is what the ethnic cleansing of Natives from Florida is known as.
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Roman Engineering
The ancient Romans were skilled engineers and have left lasting contributions in this field. The Romans built a great network of roads connecting cities throughout their empire. They also built aqueducts and bridges using arches for support. The Roman arch design was by far the most important innovation of their time. The arch, however, would have been useless without the discovery of concrete. The Romans had many other such discoveries that would make their engineering skills known throughout the world. The Romans discovered many things that would aid the construction of their great civilization. The Romans discovered that a particular mixture of volcanic rock rubble and water could be used to create very strong…show more content…
These roads were so well built that some of them are still in use by modern travelers. Romans knew that the shortest distance between two points is a straight line and built their roads incredibly straight, stretching for miles without a single turn. The use of stone in building roads enabled people to travel during inclement weather while dirt roads may remain too muddy to travel upon for many days after a hard rain. The Ancient Romans also knew of a road building technique that escapes the builders of modern roads in states such as Florida. This technique is known as crowning, this involves making the center of the roads higher than the sides, with a gradual slope to allow water to run off the sides instead of collecting in the middle. By the time the great Roman Empire fell, the Roman Army had built roads connecting all of their empire to Rome. One of Roman Engineering’s greatest accomplishments was the use of the arch. The arch shape is very strong, able to support great amounts of weight. This allowed Romans to build massive structures that would stand for many centuries. The Romans adapted the arch design to fit many purposes. The barrel vault is merely an elongated arch; this was used for buildings tombs and sewers.
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