The industrial revolution started in 1760. This was the start of the machines. This basically changed the way of manufacture. It started in England and the people of England start to use the machines to make cloth and other stuff.
They invented algebra the inventor himself name was Muhammed
Also black death/black plague.
Answer:
The golden age of the empire came during the reign of Justinian (A.D. 527-565) during which the empire's territories extended as far as Western Europe, and the emperor's builders constructed the Hagia Sophia, a great cathedral that still stands today.