Final answer:
During Suleyman the Magnificent's reign in the Ottoman Empire, Christians and Jews were trusted advisors, the empire maintained relations with Western Europe, and Islam became established in the Balkan Peninsula.
Step-by-step explanation:
The reign of Suleyman the Magnificent, a sultan of the Ottoman Empire from 1520-1566, was marked by several significant events.
A. Christians and Jews were welcomed into court as trusted advisors. Suleyman practiced a policy of religious tolerance and allowed non-Muslims to serve in his court. This policy helped to promote diversity and contributed to the multicultural nature of the Ottoman Empire.
B. The Ottoman Empire did not completely isolate itself from Western Europe. In fact, during Suleyman's reign, the empire maintained diplomatic and trade relations with European states. The Ottomans controlled important trade routes and had significant influence in the Mediterranean region.
D. Islam became firmly established in parts of the Balkan Peninsula. The Ottoman Empire expanded its territory into the Balkans and implemented the millet system, which allowed different religious communities, including Muslims, Christians, and Jews, to have a level of autonomy.
In summary, during Suleyman the Magnificent's reign, Christians and Jews were welcomed into the Ottoman court, the empire maintained relations with Western Europe, and Islam became firmly established in parts of the Balkan Peninsula.