Answer:
Beginning in the early 1870s, railroad construction in the United States increased dramatically. ... Between 1871 and 1900, another 170,000 miles were added to the nation's growing railroad system. Much of the growth can be attributed to the building of the transcontinental railroads.
Explanation:
The Civil War was the defining event for nineteenth-century America, and railroads played an important role in the conflict. As the North industrialized rapidly between 1820 and 1860, railroads helped create --and prospered from -- the rise of factory production and diversified large-scale agriculture.
John Roebling, the designer of the Brooklyn Bridge, was a civil engineer who invented twisted wire-rope cable.
Answer: Option A
<u>Explanation:</u>
Jhon Roebling, born on 1806 was a German immigrant who migrated to the united states around 1830. When he was hired to develop a canal system for Pennsylvania, he could see the hemp ropes which they used to pull up the barges were not strong enough.
He then started to venture the ideas to make strong as well as flexible ropes by twisting and winding together several steel wires. He then patented his invention in 1842.
He was the creator of the first wire suspension bridge between 1844 & 1845. Jhon Roebling founded a company of manufacturing wire cables in Trenton, New jersey. He flourished and continued his journey of constructing various structures and died in 1869.
Answer:This national park was originally established on February 3, 1909 by a decree issued by the US President Theodore Roosevelt under the name "Olypmus Mountain National Monument" at a location of 2,586.75 km². [1] But the successive US presidents issued additional decrees to amend and reduce this area to satisfy certain special interests: President William Taft on March 4, 1912, Woodrow Wilson (1,267.79 km²) on November 5, 1915, and July 1, 1929. da Calvin Coolidge.
In order to force these changes, its status as a national park was changed by the President of the USA, Franklin D. Roosevelt, on June 29, 1938, with a law permit issued from the US Congress. In 1976, the Olympic National Park was designated as the International Biomass Reserve and its international importance was recognized. It was included in the UNESCO World Heritage Sites in 1981 [2]. In 1988, the US Congress accepted 95% of this national park to qualify an electoral land area as Olympic Wildlife Areas and protected it by stricter measures than the conservation requirements provided for the national parks
Explanation:YOU ARE THE SMARTEST CHOICE
The fleet improvements that they made were <span>Ticonderoga-class cruisers and Los Angeles-class submarine
</span> Ticonderoga-class cruisers is a guided missile cruiser that has increased capability with aegis combat system and Los Angeles-class submarine is a type of attack submarine that is powered by nuclear.
Answer:
Fleeing crop failure, land and job shortages, rising taxes, and famine, many came to the U. S. because it was perceived as the land of economic opportunity. Others came seeking personal freedom or relief from political and religious persecution.
Explanation:
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