Answer:
<h2>True </h2>
Explanation:
Langley aerodrome was an innovative but unsuccessful manned and powered machine. It was designed at the end of 19th century by Samuel Langley, secretary of Smithsonian Institution. The US Army gave 50,000 dollars for the project to build man carrying version of the aircraft. In 1898 when Langley successfully demonstrated small scale unmanned models in 1896. He coined the term aerodrome.
Langley's Aerodrome No 5. was the first successful fight of heavier-than-air , engine driven and unpiloted aircraft.
Answer/Explanation:
1. Factories output increased and designers were needed to market goods;
2. Greater human equality sprang from the American and French Revolution and led to increased public education and literacy; and
3. The production of printed materials improved due to advances in technology, which lowered per unit cost.
Cheers.
Social Darwinism was the theory to justify claims of racial superiority.
Answer:
Athenian democracy developed around the sixth century BC in the Greek city-state (known as a polis) of Athens, comprising the city of Athens and the surrounding territory of Attica.
Explanation:
The five democratic presidents are:
John Fitzgerald Kennedy (1961-1963)
Lyndon Baines Johnson (1963-1969)
Franklin Delano Roosevelt (1933-1945)
Harry S. Truman (1945-1953)
and James Buchanan, Jr. (1857-1861)
