They have 9 characteristics
<span>The Byzantine emperor asked the Christians in Europe to help protect his empire from the Turks. In 1095, Pope Urban II called for a crusade against the Muslims to regain control of Jerusalem.</span>
Answer:
The industrial use of steam power started with Thomas Savery in 1698. He constructed and patented in London the first engine, which he called the "Miner's Friend" since he intended it to pump water from mines.
The employees of Pullman Car Company lived in a model town
spanning 4000 acres. This town had both the industry as well as the working
people living in it. All the people lived in a healthy environment. They lived
in very clean brick houses and large apartments which had a minimum of a single
window. The town had every facility that is necessary for living like the
doctor, laundry, variety of shops etc. The restrictions were on drinking
alcohol and loitering on the front steps of the buildings.