Who knows some websites i can study on for the four rightly guided caliphs of islam

Which impact did the civil war have on the spread of disease in texas a. disease decreased bc people left the area to fight in the war b. disease increased bc medicine was in short supply. c. disease increased bc many new diseases were brought to the area d. disease decreased bc confederate doctors distribute new medicines to local communities

What was the first major route to connect europe and asia

The original term of was descriptive of lower-class people who performed manual labor.