Why was the idea of democracy succesful?

What kind os source would a historian use to get a firsthand account of a past event

3. what was the government’s target population (goal) for 2000?

Match the vocabulary word with its meaning. 1. gender a large-scale spread of a deadly disease 2. pandemic the development and use of machines, devices and ideas to further people's knowledge 3. technology the sex of a person, whether male or female