Burt Westermeier presents a timeline of major historical events from 600-1450 CE:
1) The formation of the Ashikaga Shogunate in Japan established feudalism and a distinct political system separate from China.
2) The Babylonian Captivity weakened the Roman Catholic Church's authority in Europe, contributing to the rise of nationalism.
3) The Hundred Years' War accelerated the decline of feudalism with the widespread use of longbows in battle.
4) Muhammad's conquest of Mecca in 630 inaugurated the spread of Islam as a global religion and civilization.