Black codes were passed by many of the former confederate states in order to

Which of the following was a difficulty faced by the ottoman empire in the 1700s and 1800s?   a.  financial independence      b.  lack of trained artisans      c.  refusal to trade with other nations      d.  rebelling ethnic groups

Whose writings were the source of the idea that people have a right to abolish and replace a government that violates their natural rights?

From 1990 to 2008, by what percent did the world’s most developed economies cut their greenhouse gas emissions?