What was the main reason for the fall of the Roman Republic?

The Roman Republic engaged in series of wars that expanded the republic's territory and brought it large sums of money. These increases in the treasury led to increased competition for public office and increased cases of bribery throughout the public as citizens tried to gain access to the money. read more

Roman Republic Transformed to Roman Empire in 27 BC (On this link you can find more causes and effects of transforming Roman republic to Roman Empire) After the fall of the Roman Republic, the constitutional balance of power shifted from the Roman Senate to the Roman Emperor. read more