Which of these had the greatest effect on Roman culture during the late Republic and early Empire?
Gaius Marcus angering the Senate by promising land to soldiers
Julius Caesar naming himself dictator
growing trade of goods and spices with Sicily and Spain
the rise to political power of a series of poets and painters
"Julius Caesar naming himself dictator" had the greatest effect on Roman culture during the late Republic and early Empire, since this upended the entire political structure of Rome and ushered in a new era of dictatorship.
