Answer:
<h2>
<em><u>Samuel Morse</u></em></h2>
Explanation:
Telegraph was the device invented by Samuel Morse and other inventors in 1830's and 1840's. It revolutionised long distance communication and worked by transmitting electrical signal by a wire laid between two stations.
Samuel Morse also developed set of dots and dashes for each alphabet of English language so that complex messages could be transferred via telegraph lines. Samuel Morse sent the first telegraph between Washington D.C to Baltimore in 1844. By 1866, telegraph lines had been laid between Europe and Atlantic.
B. Russia became a major exporter of grain after 2001
Answer:
Treaty of Paris
Explanation:
The war officially ended four months later, when the U.S. and Spanish governments signed the Treaty of Paris on December 10, 1898. Apart from guaranteeing the independence of Cuba, the treaty also forced Spain to cede Guam and Puerto Rico to the United States.
The vast majority of Americans either descended from immigrants or are immigrants themselves.
Explanation:
- The population of the United States varies in racial, ethnic, religious and cultural backgrounds.
- At the end of the 18th century, the largest number of immigrants came from Great Britain, Ireland, West and Central Africa and Central America.
- In the late 19th and early 20th century, migrants from southern central and eastern Europe prevailed.
- And by the late 20 and early 21 century, immigrants from Mexico and East Asia were the most numerous.
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