Answer:
Though the first actual helicopter wasn’t built until the 1940s, it is believed that Leonardo da Vinci’s sketches from the late fifteenth century were the predecessor to the modern day flying machine. As with many of da Vinci’s ideas, he never actually built and tested it – but his notes and drawings mapped out exactly how the device would operate.
Explanation:
Answer:
55 years
Explanation:
His age of death was 55 years old. He lived from 1451–1506.
1506-1451= 55
The civil war Amendment also known as the Reconstruction Amendments are the thirteenth, fourteenth and fifteenth amendments of the united states constitution.
The Radical Reconstruction took place between 1865-1877.
These were amendments that took place due to the civil right acts that restricted the blacks freedom of speech, freedom of assembly and a host of others.
<h3>The Amendments</h3><h3 />
- The amendment covered civil and legal construction on former enslaved people.
- It abolished slavery within the united states or any place subject to their jurisdiction. It was passed by the U.S. Senate on April 8, 1864.
- The amendment authorized the government to punish states that abridged citizens’ right to vote.
- It prohibited states from disenfranchising voters on account of race, color, or previous condition of servitude. The amendment was ratified on February 3, 1870.
- The amendments extended new constitutional protections to African Americans.
Read more about the <em>Radical Reconstruction</em> here: brainly.com/question/8921852
1.C 2.D 3.A 4.C 5.B 6.C 7.B 8.C 9.B 10.A
