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Until the modern era, fish detection was done primarily by the eye. The twentieth century introduced new methods of looking for fish
Germany was a monarchy ruled by Kaiser Wilhelm II in the early Twentieth century. He was exiled in 1918 and Germany became a democracy known as the Weimer Republic which lasted until the rise of Adolf Hitler in 1933
Roman art only had a limited bearing today. However, it was extremely influential until the mid-twentieth century. The Romans influenced European architecture, sculpture and painting until the early 20th century. They influenced the sculpture and architecture of the Renaissance (14th-15th century) Baroque (17th-18th century) and Neoclassicism (18th-20th century, and is still sometimes used today). Palladian architecture was also based on Roman architecture. It was popular from the 17th century to the 20th century and was often used for public buildings. Many subjects in paintings were themes of Roman or greek mythology. Latin literature was very influential in European literature until the mid-20th century.
Actually the bombs came first, nuclear power plants were not developed until the early 1950s
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The concept of providing pensions for retired employees did not begin until the nineteenth century in Europe and did not significantly spread to the United States until the early twentieth century
The early 20th century introduced a few new types of karate to the world. The first Brazilian jiu-jitsu studio was opened in the early 1920s. Sambo was introduced in 1938. Even the term "karate" was not officially recognized until 1935.
Aluminium wasn't used until the twentieth century due to the following reasons. They are difficult to extract in comparison with iron, they have higher abundance by less surficial concentration.
Until the mid-twentieth century, brushes were made of natural materials such as hog bristles, horsehairs, and Tampico fibers.
In Colonial times, yes. The practice lasted, in some areas, up until the early Twentieth Century.
true
In the Pacific Northwest, the south, the Appalachias, and areas around the Great Lakes, produce
Until the modern era, fish detection was done primarily by the eye. The twentieth century introduced new methods of looking for fish
Although hydraulic pumps for powering hydraulic cylinders were developed in the 19th century, it was not until the twentieth century that fluid power devices became a widespread means of energy transmission.
While the traditional farming economy began to decline in the US in the early 20th century with the rise of industrialization and technology, it did not fully end until around the middle of the century. Factors such as the Dust Bowl, mechanization of farming equipment, and rural depopulation contributed to this transition. The shift towards more modern and large-scale commercial agriculture marked the end of the traditional farming economy in the US.
False
The concept of an assembly line can be traced as far back as the early 1100's. It wasn't until the early 19th century that machinery was developed in order to pave the way for the modern assembly line.