What marked the official transition from roman republic to roman empire?

when gaius marius began his rule as consul
when augustus, formally known as octavian became emperor of rome
when sulla marched on rome and declared himself dictator
when tiberius beliefs threatened the senate and gained support of rome's underclass

Brainliestttme : ) why was the launch of sputnik in 1957 important? -most in the u.s. had not thought the soviets were capable of producing satellite technology. - it made clear that the u.s. space program was dominant. - most in the soviet union had not thought the u.s. was capable of launching manned aircraft. -it established the fact that a more dangerous hydrogen bomb could be created.

Rivalries between european imperialist powers and the growth of european militaries contributed to which outcome in the early 20th century? o a. many european powers were eager to go to war with one another. o b. european states became less concerned about controlling overseas empires. o c. small countries became more willing to join powerful empires. o d. the alliance system that maintained a balance of power in europe broke down.

Why did noli me tangere have such a big impression on the narrator?