Answer:
Muslim forces repeatedly attacked the Christian Byzantine Empire.
In 1453, Constantinople fell to the Ottoman Empire. The city was renamed Istanbul
Explanation:
The crusades were arguably started because of the constant attacks of the Muslim forces on the Byzantine Empire. The Byzantine Empire is the medieval version of the Eastern Roman Empire, and as explained in the question, it was a christian state.
In 1453, after a long siege, the Seljuk Turks conquered Constantinople, which had been the Eastern Roman Empire for over 1,000 years. After the conquest, the Turks changed the name of the city to Istanbul.
Some possible new ideas could be:
LGBTQ Have the same military rights as everyone else.
New regulations for who can qualify to be in the presidential race.
Or, A whole new layout for the United States.
Hope this helps!
I would say the answer is Visigoths.
how do patterns in fossil locations provide evidence that earth's continents have moved Fossils of the same age and type have been found on continents that are separated by vast oceans. This shows that when these animals were alive, the continents were not separated.