What group of barbarian invaders weakened the roman empire?

When was wheeled traffic permitted in early rome? daytime nighttime all day never

What types of subjects did public high schools in the 1900s emphasize and why

In a modern democracy all elected officials serve for a certain number of terms then must retire a high school sophomore and a senior citizen may vote at the polls together a united states senator votes on immigration law on behalf of your mother through indirect ballot all democracies have a two chamber system of representation united states citizens live in a direct democracy