How did innovations in engineering most contribute to the lasting survival of the Roman Empire?

They helped the empire create alliances.
They helped the empire spread its culture.
They helped the empire expand its territory.
They helped the empire build a stronger military.

C, they helped the empire expand its

Explanations:

In the lesson, they didn't mention any alliance so it's probably not A, I chose c because of my notes. i got a 100 on my

the answer was right thanks

Explanation:

ur mom

explanation:

cultural achievements of the 1920's 2010  

1. cultural achievements and african american achievements in the 1920’s  

2. art and literature charles lindberg flew from ny to paris, france. became national hero; first transatlantic flight.  

3. greenwich village (new york) and the south side (chicago)  many artists, writers, and intellectuals flocked to these areas to share ideas  people lead bohemian, or artistic and unconventional, lifestyles