In WW1 soldiers faced a lot of threats in the trenches , the worst would be disease
C demographic information is used widely in advertising
The Declaration of Independence drafted by Thomas Jefferson.
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The political power of the Abbasids largely ended with the rise of the Buyids and the Seljuq Turks in 1258 CE. Though lacking in political power, the dynasty continued to claim authority in religious matters until after the Ottoman conquest of Egypt in 1517.
The increase of technology used during the construction of the railroads and factories is considered the second Industrial Revolution. This is because of the many inventions and help of transportation use. Hope this helps.
