Your answer is going to be ,it was divided by disagreements over which Muslims should be leaders. It turned into complete chaos.
Luckily, I had remembered this type of question before, next time please states how and what you want the answer to be like.
33° North
44° East
Answer:
Electricity and the light bulb. The electricity because thanks to the invention many people were able to communicate more and it was first used for so many other inventions on the way. The light bulb became VERY important and especially for everyday convenience since the invention around 1802..it is said that there's about 20 light bulb inventors (Thomas Edison was just credited). steam power and electricity as well.
<span>Hello!
The Battle of Yorktown marks the junction of French and American troops (led by Washington) against British rule.
Hugs!</span>
