Why is the first part of the Golden Age called the Ciceronian period?

The first part of the Golden Age of Latin literature is known as the Ciceronian period because it was dominated by the statesman, orator, and philosopher Cicero.12

During this era, spanning approximately 70 to 43 BCE, Cicero perfected the Latin language as a literary medium. He possessed a unique ability to express complex, abstract ideas with remarkable clarity and established an important quantitative prose rhythm. His influence on Latin prose was so profound that his style became the standard against which subsequent writers—in both Latin and later vernacular languages—defined themselves, either by imitating him or reacting against his work.1

While other significant figures such as Catullus, Lucretius, and Julius Caesar were active during this time, the period is named for Cicero due to his singular impact on the development of the language's literary form.12