Sultan Mehmed II transferred the capital of the Ottoman Empire from Edirne to Constantinople. Constantinople was transformed into an Islamic city: the Hagia Sophia became a mosque, and the city eventually became known as Istanbul.
Improvements in Navigational Devices such as Maps and Instruments such as the compass and Astrolabe as well as significant improvements in Ship-making increased European Exploration.
The Pilgrims decided to leave Europe because they wanted to escape religious persecution. At this time, there was not religious freedom in Europe. The British monarch decided upon the religion and that was the religion everyone adhered to. The Pilgrims were known as Separatists because they were separate from the Church of England. To maintain their religious freedom, they left Europe.
Https://www.army.mil/article/49291/pershings_decision_how_the_united_states_fought_its_first_modern_coalition_war
this might help you :)
