Which of the following methods is the most appropriate way to categorize
historical events by time period?
a. people, issues, economy
b. economic, political, social
c. 18th century, 19th century, 20th century
d. progressive, conservative, reactionary

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