Answer:
See below :)
Explanation:
The Boston Massacre was said to be the first spark of the American Revolution it occured on March 5th 1770, what led to that was a little scrimage between a couple of civilians and a British soldier which escalated into a bloody massacre after a riot broke out because of the raise of taxes on tea, paper, glass, paint and lead.
The Boston Tea Party occured on December 16, 1773, and was an incident of which at the dead of night, a bunch of colonists dressed up as Mohawk Indians and destroyed 342 cases of tea. They did this because they were enraged with the increased taxes and introduced the slogan: "Taxation without Representation."
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It strengthened ethnic nationalist feelings, causing the Russian empire crumble. In the Ottoman empire there were many different ethnic groups. ... It angered conservative Turks and caused tension in the empire, weakening the Ottoman Empire
Leonardo da Vinci (1452-1519) is considered the worlds greatest genius or the ultimate Renaissance man (someone good at everything). He was an Artist, Inventor, and Scientist whose famous works range from the Monalisa, The Last Supper, and the Vitruvian during the Italian Renaissance. Leonardo made an immense contribution to the study of medicine, science, and art with a voice of reason, logic, and science in a world of superstitions.
Contributions to art
He excelled in drawing, painting, and sculpture, the Monalisa and The last super are among his most famous.
Inventor and Scientist
Leonardo's journal was filled with over 13000 pages of how he observed the world and drew pictures and designs of helicopters, war machines, musical instruments, and hang gliders.
He studied the human body and drew muscles, tendons and the human skeleton. He also had detailed pictures o the heart, arm and other organs.
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The passage of the Black Codes in many southern states enraged both northerners and African Americans across the country. In response, Congress passed the Civil Rights Act over president Andrew Johnson's veto as well as the Reconstruction Act of 1867. These acts effectively outlawed discrimination on basis of race and granted equal rights to all under the Constitution. They also guaranteed that a citizen's right to vote could not be denied "on account of race, color, or previous condition of servitude." All of these actions effectively invalidated the Black Codes. However, the road to reconstruction was still a long and rocky one.
The control unit for an artificial heart was invented by Otis Frank Boykin.
