Even though the byzantine empire fell in 1453 and was in decline for centuries before
that, it left a strong legacy behind. what was the most important contribution that
byzantine made to world history? why is that most important?

Preservation of Greek arts and literature.

Explanation:

Without the Byzantine Empire, most of Greek literature, art and cultures, and maybe the ancient Greek themselves would've been lost in history.

The positive impact of the industrial revolution has brought about a lot of positive effects on the industrial revolution. These include increased wealth, increased production, and improved living standards. People can get healthier meals, better dwelling, and cheaper items. Furthermore, education has increased during the Industrial Revolution. For one reason Edward Jenner invented the smallpox vaccine and bacteria found in Louis Pasteur, medical treatment has increased and people have begun to extend their lives. The middle class and the upper class immediately benefited from the Industrial Revolution. It took more time for the workers. However, in the 19th century, workers formed unions and got higher wages and better working conditions. As a result, they began to benefit from the industrial revolution.