The fall of Constantinople was the Ottoman Empire's invasion of Constantinople, capital of the Eastern Roman Empire, also known as the Byzantine Empire. This historical event occurred on May 29, 1453 and signified the end of the Middle Ages and the beginning of the Modern Age. The beginnings of this event date from the time of the Christian crusades, when in 1204, during the fourth crusade, they took the city by storm and annexed it to the Latin empire.

In general, many textbooks tend to link the rise of communism due to the theoretical reflection pointed out by Karl Marx and Friedrich Engels. However, this idea that communism would be the result of a mere reflection of two nineteenth-century theorists can be seen in a different light.