How did the spread of civilization begin in the america’s

hat depends on the context, if your speaking about the colonization of when the pilgrams came then it started from the East Coast of what is today the United States and slowly worked its way West. In the beginning of the colonization 13 states were made on the East and the Native Americans had the entire west coast. Eventually more states were added as the colonials pushed further West, Their belief was in "Manifest Destiny" which was the belief that the Americans had the Right to move further west and colonize because it was Gods will. good luck hopefully this helps you

the use of email to replace slower surface mail.

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.